diff --git a/app/assets/javascripts/brython.js b/app/assets/javascripts/brython.js
new file mode 100644
--- /dev/null
+++ b/app/assets/javascripts/brython.js
@@ -0,0 +1,10848 @@
+// brython.js brython.info
+// version [3, 3, 0, 'alpha', 0]
+// implementation [3, 2, 7, 'final', 0]
+// version compiled from commented, indented source files at github.com/brython-dev/brython
+var __BRYTHON__=__BRYTHON__ ||{}
+;(function($B){
+var scripts=document.getElementsByTagName('script')
+var this_url=scripts[scripts.length-1].src
+var elts=this_url.split('/')
+elts.pop()
+var $path=$B.brython_path=elts.join('/')+'/'
+var $href=$B.script_path=window.location.href
+var $href_elts=$href.split('/')
+$href_elts.pop()
+var $script_dir=$B.script_dir=$href_elts.join('/')
+$B.$py_module_path={}
+$B.$py_src={}
+$B.path=[$path+'Lib',$path+'libs',$script_dir,$path+'Lib/site-packages']
+$B.bound={}
+$B.type={}
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+$B.frames_stack=[]
+$B.builtins={__repr__:function(){return "<module 'builtins>'"},__str__:function(){return "<module 'builtins'>"},}
+$B.builtins_block={id:'__builtins__',module:'__builtins__'}
+$B.modules['__builtins__']=$B.builtins_block
+$B.bound['__builtins__']={'__BRYTHON__':true,'$eval':true,'$open': true}
+$B.bound['__builtins__']['BaseException']=true
+$B.type['__builtins__']={}
+$B.builtin_funcs={}
+$B.__getattr__=function(attr){return this[attr]}
+$B.__setattr__=function(attr,value){
+if(['debug','stdout','stderr'].indexOf(attr)>-1){$B[attr]=value}
+else{throw $B.builtins.AttributeError('__BRYTHON__ object has no attribute '+attr)}}
+$B.language=window.navigator.userLanguage ||window.navigator.language
+$B.charset=document.characterSet ||document.inputEncoding ||"utf-8"
+$B.max_int=Math.pow(2,53)-1
+$B.min_int=-$B.max_int
+$B.$py_next_hash=Math.pow(2,53)-1
+$B.$py_UUID=0
+$B.lambda_magic=Math.random().toString(36).substr(2,8)
+$B.callbacks={}
+var has_storage=typeof(Storage)!=="undefined"
+if(has_storage){$B.has_local_storage=false
+try{
+if(localStorage){$B.local_storage=localStorage
+$B.has_local_storage=true}}catch(err){}
+$B.has_session_storage=false
+try{
+if(sessionStorage){$B.session_storage=sessionStorage
+$B.has_session_storage=true}}catch(err){}}else{
+$B.has_local_storage=false
+$B.has_session_storage=false}
+$B.globals=function(){
+return $B.frames_stack[$B.frames_stack.length-1][3]}
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+__BRYTHON__.compiled_date="2016-06-21 18:43:25.263849"
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+
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+while(i-->0){res[list[i]]=value}
+return res}
+var $operators={"//=":"ifloordiv",">>=":"irshift","<<=":"ilshift","**=":"ipow","**":"pow","//":"floordiv","<<":"lshift",">>":"rshift","+=":"iadd","-=":"isub","*=":"imul","/=":"itruediv","%=":"imod","&=":"iand","|=":"ior","^=":"ixor","+":"add","-":"sub","*":"mul","/":"truediv","%":"mod","&":"and","|":"or","~":"invert","^":"xor","<":"lt",">":"gt","<=":"le",">=":"ge","==":"eq","!=":"ne","or":"or","and":"and","in":"in","not": "not","is":"is","not_in":"not_in","is_not":"is_not" }
+var $augmented_assigns={"//=":"ifloordiv",">>=":"irshift","<<=":"ilshift","**=":"ipow","+=":"iadd","-=":"isub","*=":"imul","/=":"itruediv","%=":"imod","&=":"iand","|=":"ior","^=":"ixor"}
+var noassign=$B.list2obj(['True','False','None','__debug__'])
+var $op_order=[['or'],['and'],['not'],['in','not_in'],['<','<=','>','>=','!=','==','is','is_not'],['|'],['^'],['&'],['>>','<<'],['+'],['-'],['*','/','//','%'],['unary_neg','unary_inv','unary_pos'],['**']
+]
+var $op_weight={}
+var $weight=1
+for(var $i=0;$i<$op_order.length;$i++){var _tmp=$op_order[$i]
+for(var $j=0;$j<_tmp.length;$j++){$op_weight[_tmp[$j]]=$weight}
+$weight++}
+var $loop_num=0
+$B.func_magic=Math.random().toString(36).substr(2,8)
+function $_SyntaxError(C,msg,indent){
+var ctx_node=C
+while(ctx_node.type!=='node'){ctx_node=ctx_node.parent}
+var tree_node=ctx_node.node,root=tree_node
+while(root.parent!==undefined){root=root.parent}
+var module=tree_node.module
+var line_num=tree_node.line_num
+if(root.line_info){line_num=root.line_info}
+if(indent!==undefined){line_num++}
+if(indent===undefined){if(Array.isArray(msg)){$B.$SyntaxError(module,msg[0],$pos)}
+if(msg==="Triple string end not found"){
+$B.$SyntaxError(module,'invalid syntax : triple string end not found',$pos,line_num)}
+$B.$SyntaxError(module,'invalid syntax',$pos,line_num)}else{throw $B.$IndentationError(module,msg,$pos)}}
+function $Node(type){this.type=type
+this.children=[]
+this.yield_atoms=[]
+this.add=function(child){
+this.children[this.children.length]=child
+child.parent=this
+child.module=this.module}
+this.insert=function(pos,child){
+this.children.splice(pos,0,child)
+child.parent=this
+child.module=this.module}
+this.toString=function(){return "<object 'Node'>"}
+this.show=function(indent){
+var res=''
+if(this.type==='module'){for(var i=0;i<this.children.length;i++){res +=this.children[i].show(indent)}
+return res}
+indent=indent ||0
+res +=' '.repeat(indent)
+res +=this.C
+if(this.children.length>0)res +='{'
+res +='\n'
+for(var i=0;i<this.children.length;i++){res +='['+i+'] '+this.children[i].show(indent+4)}
+if(this.children.length>0){res +=' '.repeat(indent)
+res+='}\n'}
+return res}
+this.to_js=function(indent){
+if(this.js!==undefined)return this.js
+this.res=[]
+var pos=0
+this.unbound=[]
+if(this.type==='module'){for(var i=0;i<this.children.length;i++){this.res[pos++]=this.children[i].to_js()
+this.children[i].js_index=pos }
+this.js=this.res.join('')
+return this.js}
+indent=indent ||0
+var ctx_js=this.C.to_js()
+if(ctx_js){
+this.res[pos++]=' '.repeat(indent)
+this.res[pos++]=ctx_js
+this.js_index=pos 
+if(this.children.length>0)this.res[pos++]='{'
+this.res[pos++]='\n'
+for(var i=0;i<this.children.length;i++){this.res[pos++]=this.children[i].to_js(indent+4)
+this.children[i].js_index=pos }
+if(this.children.length>0){this.res[pos++]=' '.repeat(indent)
+this.res[pos++]='}\n'}}
+this.js=this.res.join('')
+return this.js}
+this.transform=function(rank){
+if(this.yield_atoms.length>0){
+this.parent.children.splice(rank,1)
+var offset=0
+for(var i=0;i<this.yield_atoms.length;i++){
+var temp_node=new $Node()
+var js='$yield_value'+$loop_num
+js +='='+(this.yield_atoms[i].to_js()||'None')
+new $NodeJSCtx(temp_node,js)
+this.parent.insert(rank+offset,temp_node)
+var yield_node=new $Node()
+this.parent.insert(rank+offset+1,yield_node)
+var yield_expr=new $YieldCtx(new $NodeCtx(yield_node))
+new $StringCtx(yield_expr,'$yield_value'+$loop_num)
+var set_yield=new $Node()
+set_yield.is_set_yield_value=true
+js=$loop_num
+new $NodeJSCtx(set_yield,js)
+this.parent.insert(rank+offset+2,set_yield)
+this.yield_atoms[i].to_js=(function(x){return function(){return '$yield_value'+x}})($loop_num)
+$loop_num++
+offset +=3}
+this.parent.insert(rank+offset,this)
+this.yield_atoms=[]
+return offset+1}
+if(this.type==='module'){
+this.doc_string=$get_docstring(this)
+var i=0
+while(i<this.children.length){var offset=this.children[i].transform(i)
+if(offset===undefined){offset=1}
+i +=offset}}else{var elt=this.C.tree[0],ctx_offset
+if(elt.transform !==undefined){ctx_offset=elt.transform(this,rank)}
+var i=0
+while(i<this.children.length){var offset=this.children[i].transform(i)
+if(offset===undefined){offset=1}
+i +=offset}
+if(ctx_offset===undefined){ctx_offset=1}
+return ctx_offset}}
+this.clone=function(){var res=new $Node(this.type)
+for(var attr in this){res[attr]=this[attr]}
+return res}}
+function $AbstractExprCtx(C,with_commas){this.type='abstract_expr'
+this.with_commas=with_commas
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return '(abstract_expr '+with_commas+') '+this.tree}
+this.to_js=function(){this.js_processed=true
+if(this.type==='list')return '['+$to_js(this.tree)+']'
+return $to_js(this.tree)}}
+function $AliasCtx(C){
+this.type='ctx_manager_alias'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length-1].alias=this}
+function $AnnotationCtx(C){
+this.type='annotation'
+this.parent=C
+this.tree=[]
+C.annotation=this
+this.toString=function(){return '(annotation) '+this.tree}
+this.to_js=function(){return $to_js(this.tree)}}
+function $AssertCtx(C){
+this.type='assert'
+this.toString=function(){return '(assert) '+this.tree}
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.transform=function(node,rank){if(this.tree[0].type==='list_or_tuple'){
+var condition=this.tree[0].tree[0]
+var message=this.tree[0].tree[1]}else{var condition=this.tree[0]
+var message=null}
+var new_ctx=new $ConditionCtx(node.C,'if')
+var not_ctx=new $NotCtx(new_ctx)
+not_ctx.tree=[condition]
+node.C=new_ctx
+var new_node=new $Node()
+var js='throw AssertionError("AssertionError")'
+if(message !==null){js='throw AssertionError(str('+message.to_js()+'))'}
+new $NodeJSCtx(new_node,js)
+node.add(new_node)}}
+function $AssignCtx(C){
+var ctx=C
+while(ctx){if(ctx.type=='assert'){$_SyntaxError(C,'invalid syntax - assign')}
+ctx=ctx.parent}
+this.type='assign'
+C.parent.tree.pop()
+C.parent.tree[C.parent.tree.length]=this
+this.parent=C.parent
+this.tree=[C]
+var scope=$get_scope(this)
+if(C.type=='expr' && C.tree[0].type=='call'){$_SyntaxError(C,["can't assign to function call "])}else if(C.type=='list_or_tuple' ||
+(C.type=='expr' && C.tree[0].type=='list_or_tuple')){if(C.type=='expr'){C=C.tree[0]}
+for(var name in C.ids()){$bind(name,scope.id,scope.level)}}else if(C.type=='assign'){for(var i=0;i<C.tree.length;i++){var assigned=C.tree[i].tree[0]
+if(assigned.type=='id'){$bind(assigned.value,scope.id,scope.level)}}}else{var assigned=C.tree[0]
+if(assigned && assigned.type=='id'){if(noassign[assigned.value]===true){$_SyntaxError(C,["can't assign to keyword"])}
+assigned.bound=true
+if(!$B._globals[scope.id]||
+$B._globals[scope.id][assigned.value]===undefined){
+var node=$get_node(this)
+node.bound_before=$B.keys($B.bound[scope.id])
+$bind(assigned.value,scope.id,scope.level)}}}
+this.guess_type=function(){if(this.tree[0].type=="expr" && this.tree[0].tree[0].type=="id"){$set_type(scope,this.tree[0],this.tree[1])}else if(this.tree[0].type=='assign'){var left=this.tree[0].tree[0].tree[0]
+var right=this.tree[0].tree[1].tree[0]
+$set_type(scope,right,this.tree[1].tree[0])
+this.tree[0].guess_type()}else{}}
+this.toString=function(){return '(assign) '+this.tree[0]+'='+this.tree[1]}
+this.transform=function(node,rank){
+var scope=$get_scope(this)
+var left=this.tree[0],right=this.tree[1],assigned=[]
+while(left.type=='assign'){assigned.push(left.tree[1])
+left=left.tree[0]}
+if(assigned.length>0){assigned.push(left)
+var ctx=node.C
+ctx.tree=[]
+var nleft=new $RawJSCtx(ctx,'var $temp'+$loop_num)
+nleft.tree=ctx.tree
+nassign=new $AssignCtx(nleft)
+nassign.tree[1]=right
+for(var i=0;i<assigned.length;i++){var new_node=new $Node(),node_ctx=new $NodeCtx(new_node)
+node.parent.insert(rank+1,new_node)
+assigned[i].parent=node_ctx
+var assign=new $AssignCtx(assigned[i])
+new $RawJSCtx(assign,'$temp'+$loop_num)}
+return assigned.length-1}
+var left_items=null
+switch(left.type){case 'expr':
+if(left.tree.length>1){left_items=left.tree}else if(left.tree[0].type==='list_or_tuple'||left.tree[0].type==='target_list'){left_items=left.tree[0].tree}else if(left.tree[0].type=='id'){
+var name=left.tree[0].value
+if($B._globals && $B._globals[scope.id]
+&& $B._globals[scope.id][name]){void(0)}else{left.tree[0].bound=true}}
+break
+case 'target_list': 
+case 'list_or_tuple':
+left_items=left.tree}
+if(left_items===null){return}
+var right=this.tree[1]
+var right_items=null
+if(right.type==='list'||right.type==='tuple'||
+(right.type==='expr' && right.tree.length>1)){right_items=right.tree}
+if(right_items!==null){
+if(right_items.length>left_items.length){throw Error('ValueError : too many values to unpack (expected '+left_items.length+')')}else if(right_items.length<left_items.length){throw Error('ValueError : need more than '+right_items.length+' to unpack')}
+var new_nodes=[],pos=0
+var new_node=new $Node()
+new $NodeJSCtx(new_node,'void(0)')
+new_nodes[pos++]=new_node
+var $var='$temp'+$loop_num
+var new_node=new $Node()
+new $NodeJSCtx(new_node,'var '+$var+'=[], $pos=0')
+new_nodes[pos++]=new_node
+for(var i=0;i<right_items.length;i++){var js=$var+'[$pos++]='+right_items[i].to_js()
+var new_node=new $Node()
+new $NodeJSCtx(new_node,js)
+new_nodes[pos++]=new_node}
+for(var i=0;i<left_items.length;i++){var new_node=new $Node()
+new_node.id=$get_node(this).module
+var C=new $NodeCtx(new_node)
+left_items[i].parent=C
+var assign=new $AssignCtx(left_items[i],false)
+assign.tree[1]=new $JSCode($var+'['+i+']')
+new_nodes[pos++]=new_node}
+node.parent.children.splice(rank,1)
+for(var i=new_nodes.length-1;i>=0;i--){node.parent.insert(rank,new_nodes[i])}
+$loop_num++}else{
+var new_node=new $Node()
+new_node.line_num=node.line_num
+var js='var $right'+$loop_num+'=getattr'
+js +='(iter('+right.to_js()+'),"__next__");'
+new $NodeJSCtx(new_node,js)
+var new_nodes=[new_node],pos=1
+var rlist_node=new $Node()
+var $var='$rlist'+$loop_num
+js='var '+$var+'=[], $pos=0;'
+js +='while(1){try{'+$var+'[$pos++]=$right'
+js +=$loop_num+'()}catch(err){break}};'
+new $NodeJSCtx(rlist_node,js)
+new_nodes[pos++]=rlist_node
+var packed=null
+for(var i=0;i<left_items.length;i++){var expr=left_items[i]
+if(expr.type=='packed' ||
+(expr.type=='expr' && expr.tree[0].type=='packed')){packed=i
+break}}
+var check_node=new $Node()
+var min_length=left_items.length
+if(packed!==null){min_length--}
+js='if($rlist'+$loop_num+'.length<'+min_length+')'
+js +='{throw ValueError("need more than "+$rlist'+$loop_num
+js +='.length+" value" + ($rlist'+$loop_num+'.length>1 ?'
+js +=' "s" : "")+" to unpack")}'
+new $NodeJSCtx(check_node,js)
+new_nodes[pos++]=check_node
+if(packed==null){var check_node=new $Node()
+var min_length=left_items.length
+js='if($rlist'+$loop_num+'.length>'+min_length+')'
+js +='{throw ValueError("too many values to unpack '
+js +='(expected '+left_items.length+')")}'
+new $NodeJSCtx(check_node,js)
+new_nodes[pos++]=check_node}
+var j=0
+for(var i=0;i<left_items.length;i++){var new_node=new $Node()
+new_node.id=scope.id
+var C=new $NodeCtx(new_node)
+left_items[i].parent=C
+var assign=new $AssignCtx(left_items[i],false)
+var js='$rlist'+$loop_num
+if(packed==null ||i<packed){js +='['+i+']'}else if(i==packed){js +='.slice('+i+',$rlist'+$loop_num+'.length-'
+js +=(left_items.length-i-1)+')'}else{js +='[$rlist'+$loop_num+'.length-'+(left_items.length-i)+']'}
+assign.tree[1]=new $JSCode(js)
+new_nodes[pos++]=new_node}
+node.parent.children.splice(rank,1)
+for(var i=new_nodes.length-1;i>=0;i--){node.parent.insert(rank,new_nodes[i])}
+$loop_num++}}
+this.to_js=function(){this.js_processed=true
+if(this.parent.type==='call'){
+return '{$nat:"kw",name:'+this.tree[0].to_js()+',value:'+this.tree[1].to_js()+'}'}
+var left=this.tree[0]
+if(left.type==='expr')left=left.tree[0]
+var right=this.tree[1]
+if(left.type=='attribute' ||left.type=='sub'){
+var node=$get_node(this),right_js=right.to_js()
+var res='',rvar='',$var='$temp'+$loop_num
+if(right.type=='expr' && right.tree[0]!==undefined &&
+right.tree[0].type=='call' &&
+('eval'==right.tree[0].func.value ||
+'exec'==right.tree[0].func.value)){res +='var '+$var+'='+right_js+';\n'
+rvar=$var}else if(right.type=='expr' && right.tree[0]!==undefined &&
+right.tree[0].type=='sub'){res +='var '+$var+'='+right_js+';\n'
+rvar=$var}else{rvar=right_js}
+if(left.type==='attribute'){
+$loop_num++
+left.func='setattr'
+res +=left.to_js()
+left.func='getattr'
+res=res.substr(0,res.length-1)
+return res + ','+rvar+');None;'}
+if(left.type==='sub'){
+var seq=left.value.to_js(),temp='$temp'+$loop_num,type
+if(left.value.type=='id'){type=$get_node(this).locals[left.value.value]}
+$loop_num++
+var res='var '+temp+'='+seq+'\n'
+if(type!=='list'){res +='if(Array.isArray('+temp+') && !'+temp+'.__class__){'}
+if(left.tree.length==1){res +='$B.set_list_key('+temp+','+
+(left.tree[0].to_js()+''||'null')+','+
+right.to_js()+')'}else if(left.tree.length==2){res +='$B.set_list_slice('+temp+','+
+(left.tree[0].to_js()+''||'null')+','+
+(left.tree[1].to_js()+''||'null')+','+
+right.to_js()+')'}else if(left.tree.length==3){res +='$B.set_list_slice_step('+temp+','+
+(left.tree[0].to_js()+''||'null')+','+
+(left.tree[1].to_js()+''||'null')+','+
+(left.tree[2].to_js()+''||'null')+','+
+right.to_js()+')'}
+if(type=='list'){return res}
+res +='\n}else{'
+if(left.tree.length==1){res +='$B.$setitem('+left.value.to_js()
+res +=','+left.tree[0].to_js()+','+right_js+')};None;'}else{left.func='setitem' 
+res +=left.to_js()
+res=res.substr(0,res.length-1)
+left.func='getitem' 
+res +=','+right_js+')};None;'}
+return res}}
+return left.to_js()+'='+right.to_js()}}
+function $AttrCtx(C){
+this.type='attribute'
+this.value=C.tree[0]
+this.parent=C
+C.tree.pop()
+C.tree[C.tree.length]=this
+this.tree=[]
+this.func='getattr' 
+this.toString=function(){return '(attr) '+this.value+'.'+this.name}
+this.to_js=function(){this.js_processed=true
+return this.func+'('+this.value.to_js()+',"'+this.name+'")'}}
+function $AugmentedAssignCtx(C,op){
+this.type='augm_assign'
+this.parent=C.parent
+C.parent.tree.pop()
+C.parent.tree[C.parent.tree.length]=this
+this.op=op
+this.tree=[C]
+var scope=this.scope=$get_scope(this)
+if(C.type=='expr' && C.tree[0].type=='id'){var name=C.tree[0].value
+if(noassign[name]===true){$_SyntaxError(C,["can't assign to keyword"])}else if((scope.ntype=='def'||scope.ntype=='generator')&&
+$B.bound[scope.id][name]===undefined){if(scope.globals===undefined ||scope.globals.indexOf(name)==-1){
+C.tree[0].unbound=true}}}
+$get_node(this).bound_before=$B.keys($B.bound[scope.id])
+this.module=scope.module
+this.toString=function(){return '(augm assign) '+this.tree}
+this.transform=function(node,rank){var func='__'+$operators[op]+'__'
+var offset=0,parent=node.parent
+var line_num=node.line_num,lnum_set=false
+parent.children.splice(rank,1)
+var left_is_id=(this.tree[0].type=='expr' && 
+this.tree[0].tree[0].type=='id')
+if(left_is_id){
+this.tree[0].tree[0].augm_assign=true
+if($B.debug>0){var check_node=$NodeJS('if('+this.tree[0].to_js()+
+'===undefined){throw NameError("name \''+
+                    this.tree[0].tree[0].value+'\' is not defined")}')
+node.parent.insert(rank,check_node)
+offset++}
+var left_id=this.tree[0].tree[0].value,was_bound=$B.bound[this.scope.id][left_id]!==undefined,left_id_unbound=this.tree[0].tree[0].unbound}
+var right_is_int=(this.tree[1].type=='expr' && 
+this.tree[1].tree[0].type=='int')
+var right=right_is_int ? this.tree[1].tree[0].to_js(): '$temp'
+if(!right_is_int){
+var new_node=new $Node()
+new_node.line_num=line_num
+lnum_set=true
+new $NodeJSCtx(new_node,'var $temp,$left;')
+parent.insert(rank,new_node)
+offset++
+var new_node=new $Node()
+new_node.id=this.scope.id
+var new_ctx=new $NodeCtx(new_node)
+var new_expr=new $ExprCtx(new_ctx,'js',false)
+var _id=new $RawJSCtx(new_expr,'$temp')
+var assign=new $AssignCtx(new_expr)
+assign.tree[1]=this.tree[1]
+_id.parent=assign
+parent.insert(rank+offset,new_node)
+offset++}
+var prefix='',in_class=false
+switch(op){case '+=':
+case '-=':
+case '*=':
+case '/=':
+if(left_is_id){var scope=this.scope,local_ns='$local_'+scope.id.replace(/\./g,'_'),global_ns='$local_'+scope.module.replace(/\./g,'_'),prefix
+switch(scope.ntype){case 'module':
+prefix=global_ns
+break
+case 'def':
+case 'generator':
+if(scope.globals && scope.globals.indexOf(C.tree[0].value)>-1){prefix=global_ns}else{prefix='$locals'}
+break;
+case 'class':
+var new_node=new $Node()
+if(!lnum_set){new_node.line_num=line_num;lnum_set=true}
+new $NodeJSCtx(new_node,'var $left='+C.to_js())
+parent.insert(rank+offset,new_node)
+in_class=true
+offset++}}}
+var left=C.tree[0].to_js()
+prefix=prefix && !C.tree[0].unknown_binding && left_id_unbound===undefined
+var op1=op.charAt(0)
+if(prefix){var left1=in_class ? '$left' : left
+var new_node=new $Node()
+if(!lnum_set){new_node.line_num=line_num;lnum_set=true}
+js=right_is_int ? 'if(' : 'if(typeof $temp.valueOf()=="number" && '
+js +=left1+'.constructor===Number' 
+js +='&& '+left+op1+right+'>$B.min_int && '+left+op1+right+
+'< $B.max_int){'
+js +=right_is_int ? '(' : '(typeof $temp=="number" && '
+js +='typeof '+left1+'=="number") ? '
+js +=left+op+right
+js +=' : ('+left1+'.constructor===Number ? '
+js +=left+'=float('+left+op1
+js +=right_is_int ? right : right+'.valueOf()'
+js +=') : '+left + op
+js +=right_is_int ? right : right+'.valueOf()'
+js +=')}'
+new $NodeJSCtx(new_node,js)
+parent.insert(rank+offset,new_node)
+offset++}
+var aaops={'+=':'add','-=':'sub','*=':'mul'}
+if(C.tree[0].type=='sub' &&
+('+='==op ||'-='==op ||'*='==op)&& 
+C.tree[0].tree.length==1){var js1='$B.augm_item_'+aaops[op]+'('
+js1 +=C.tree[0].value.to_js()
+js1 +=','+C.tree[0].tree[0].to_js()+','
+js1 +=right+');None;'
+var new_node=new $Node()
+if(!lnum_set){new_node.line_num=line_num;lnum_set=true}
+new $NodeJSCtx(new_node,js1)
+parent.insert(rank+offset,new_node)
+offset++
+return}
+var new_node=new $Node()
+if(!lnum_set){new_node.line_num=line_num;lnum_set=true}
+var js=''
+if(prefix){js +='else '}
+js +='if(!hasattr('+C.to_js()+',"'+func+'"))'
+new $NodeJSCtx(new_node,js)
+parent.insert(rank+offset,new_node)
+offset ++
+var aa1=new $Node()
+aa1.id=this.scope.id
+var ctx1=new $NodeCtx(aa1)
+var expr1=new $ExprCtx(ctx1,'clone',false)
+if(left_id_unbound){new $RawJSCtx(expr1,'$locals["'+left_id+'"]')}else{expr1.tree=C.tree
+for(var i=0;i<expr1.tree.length;i++){expr1.tree[i].parent=expr1}}
+var assign1=new $AssignCtx(expr1)
+var new_op=new $OpCtx(expr1,op.substr(0,op.length-1))
+new_op.parent=assign1
+new $RawJSCtx(new_op,right)
+assign1.tree.push(new_op)
+expr1.parent.tree.pop()
+expr1.parent.tree.push(assign1)
+new_node.add(aa1)
+var aa2=new $Node()
+new $NodeJSCtx(aa2,'else')
+parent.insert(rank+offset,aa2)
+var aa3=new $Node()
+var js3='getattr('+C.to_js()+',"'+func+'")('+right+')'
+new $NodeJSCtx(aa3,js3)
+aa2.add(aa3)
+if(left_is_id && !was_bound && !this.scope.blurred){$B.bound[this.scope.id][left_id]=undefined}
+return offset}
+this.to_js=function(){return ''}}
+function $BodyCtx(C){
+var ctx_node=C.parent
+while(ctx_node.type!=='node'){ctx_node=ctx_node.parent}
+var tree_node=ctx_node.node
+var body_node=new $Node()
+body_node.line_num=tree_node.line_num
+tree_node.insert(0,body_node)
+return new $NodeCtx(body_node)}
+function $BreakCtx(C){
+this.type='break'
+this.toString=function(){return 'break '}
+this.parent=C
+C.tree[C.tree.length]=this
+var ctx_node=C
+while(ctx_node.type!=='node'){ctx_node=ctx_node.parent}
+var tree_node=ctx_node.node
+var loop_node=tree_node.parent
+var break_flag=false
+while(1){if(loop_node.type==='module'){
+$_SyntaxError(C,'break outside of a loop')}else{var ctx=loop_node.C.tree[0]
+if(ctx.type==='condition' && ctx.token==='while'){this.loop_ctx=ctx
+ctx.has_break=true
+break}
+switch(ctx.type){case 'for':
+this.loop_ctx=ctx
+ctx.has_break=true
+break_flag=true
+break
+case 'def':
+case 'generator':
+case 'class':
+$_SyntaxError(C,'break outside of a loop')
+default:
+loop_node=loop_node.parent}
+if(break_flag)break}}
+this.to_js=function(){this.js_processed=true
+var scope=$get_scope(this)
+var res=';$locals_'+scope.id.replace(/\./g,'_')+
+'["$no_break'+this.loop_ctx.loop_num+'"]=false'
+if(this.loop_ctx.type!='asyncfor'){res +=';break'}else{res +=';throw StopIteration('+this.loop_ctx.loop_num+')'}
+return res}}
+function $CallArgCtx(C){
+this.type='call_arg'
+this.toString=function(){return 'call_arg '+this.tree}
+this.parent=C
+this.start=$pos
+this.tree=[]
+C.tree[C.tree.length]=this
+this.expect='id'
+this.to_js=function(){this.js_processed=true
+return $to_js(this.tree)}}
+function $CallCtx(C){
+this.type='call'
+this.func=C.tree[0]
+if(this.func!==undefined){
+this.func.parent=this}
+this.parent=C
+if(C.type!='class'){C.tree.pop()
+C.tree[C.tree.length]=this}else{
+C.args=this}
+this.expect='id'
+this.tree=[]
+this.start=$pos
+this.toString=function(){return '(call) '+this.func+'('+this.tree+')'}
+this.to_js=function(){this.js_processed=true
+if(this.tree.length>0){if(this.tree[this.tree.length-1].tree.length==0){
+this.tree.pop()}}
+var func_js=this.func.to_js()
+if(this.func!==undefined){switch(this.func.value){case 'classmethod':
+return 'classmethod('+$to_js(this.tree)+')'
+case '$$super':
+if(this.tree.length==0){
+var scope=$get_scope(this)
+if(scope.ntype=='def' ||scope.ntype=='generator'){var def_scope=$get_scope(scope.C.tree[0])
+if(def_scope.ntype=='class'){new $IdCtx(this,def_scope.C.tree[0].name)}}}
+if(this.tree.length==1){
+var scope=$get_scope(this)
+if(scope.ntype=='def' ||scope.ntype=='generator'){var args=scope.C.tree[0].args
+if(args.length>0){new $IdCtx(this,args[0])}}}
+break
+default:
+if(this.func.type=='unary'){
+switch(this.func.op){case '+':
+return 'getattr('+$to_js(this.tree)+',"__pos__")()'
+case '-':
+return 'getattr('+$to_js(this.tree)+',"__neg__")()'
+case '~':
+return 'getattr('+$to_js(this.tree)+',"__invert__")()'}}}
+var _block=false
+if($B.async_enabled){var scope=$get_scope(this.func)
+if($B.block[scope.id]===undefined){}
+else if($B.block[scope.id][this.func.value])_block=true}
+var pos_args=[],kw_args=[],star_args=null,dstar_args=null
+for(var i=0;i<this.tree.length;i++){var arg=this.tree[i],type
+switch(arg.type){case 'star_arg':
+star_args=arg.tree[0].tree[0].to_js()
+break
+case 'double_star_arg':
+dstar_args=arg.tree[0].tree[0].to_js()
+break
+case 'id':
+pos_args.push(arg.to_js())
+break
+default:
+if(arg.tree[0]===undefined){console.log('bizarre',arg)}
+else{type=arg.tree[0].type}
+switch(type){case 'expr':
+pos_args.push(arg.to_js())
+break
+case 'kwarg':
+kw_args.push(arg.tree[0].tree[0].value+':'+arg.tree[0].tree[1].to_js())
+break
+case 'list_or_tuple':
+case 'op':
+pos_args.push(arg.to_js())
+break
+case 'star_arg':
+star_args=arg.tree[0].tree[0].to_js()
+break
+case 'double_star_arg':
+dstar_args=arg.tree[0].tree[0].to_js()
+break
+default:
+pos_args.push(arg.to_js())
+break}
+break}}
+var args_str=pos_args.join(', ')
+if(star_args){args_str='$B.extend_list('+args_str
+if(pos_args.length>0){args_str +=','}
+args_str +='_b_.list('+star_args+'))'}
+if(this.func.value=="fghjk"){console.log('fghjk')
+var kw_args_str='{'+kw_args.join(', ')+'}'
+if(dstar_args){kw_args_str='$B.extend("'+this.func.value+'",'+kw_args_str
+kw_args_str +=','+dstar_args+')'}else if(kw_args_str=='{}'){kw_args_str=''}
+var res='getattr('+func_js+',"__call__")(['+args_str+']'
+if(kw_args_str.length>0){res +=', '+kw_args_str}
+return res + ')'}
+var kw_args_str='{'+kw_args.join(', ')+'}'
+if(dstar_args){kw_args_str='{$nat:"kw",kw:$B.extend("'+this.func.value+'",'+kw_args_str
+kw_args_str +=','+dstar_args+')}'}else if(kw_args_str!=='{}'){kw_args_str='{$nat:"kw",kw:'+kw_args_str+'}'}else{kw_args_str=''}
+if(star_args && kw_args_str){args_str +='.concat(['+kw_args_str+'])' }else{if(args_str && kw_args_str){args_str +=','+kw_args_str}
+else if(!args_str){args_str=kw_args_str}}
+if(star_args){
+args_str='.apply(null,'+args_str+')'}else{args_str='('+args_str+')'}
+if($B.debug>0){
+var res='getattr('+func_js+',"__call__")'
+return res+args_str}
+if(this.tree.length>-1){if(this.func.type=='id'){if(this.func.is_builtin){
+if($B.builtin_funcs[this.func.value]!==undefined){return func_js+args_str}}else{var bound_obj=this.func.found
+if(bound_obj &&(bound_obj.type=='class' ||
+bound_obj.type=='def')){return func_js+args_str}}
+var res='('+func_js+'.$is_func ? '
+res +=func_js+' : '
+res +='getattr('+func_js+',"__call__"))'+args_str}else{var res='getattr('+func_js+',"__call__")'+args_str}
+return res}
+return 'getattr('+func_js+',"__call__")()'}}}
+function $ClassCtx(C){
+this.type='class'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.expect='id'
+this.toString=function(){return '(class) '+this.name+' '+this.tree+' args '+this.args}
+var scope=this.scope=$get_scope(this)
+this.parent.node.parent_block=scope
+this.parent.node.bound={}
+this.set_name=function(name){this.random=$B.UUID()
+this.name=name
+this.id=C.node.module+'_'+name+'_'+this.random
+$B.bound[this.id]={}
+$B.type[this.id]={}
+if($B.async_enabled)$B.block[this.id]={}
+$B.modules[this.id]=this.parent.node
+this.parent.node.id=this.id
+var parent_block=scope
+while(parent_block.C && parent_block.C.tree[0].type=='class'){parent_block=parent_block.parent}
+while(parent_block.C && 
+'def' !=parent_block.C.tree[0].type &&
+'generator' !=parent_block.C.tree[0].type){parent_block=parent_block.parent}
+this.parent.node.parent_block=parent_block
+this.level=this.scope.level
+$B.bound[this.scope.id][name]=this
+$B.type[this.scope.id][name]='class'
+if(scope.is_function){if(scope.C.tree[0].locals.indexOf(name)==-1){scope.C.tree[0].locals.push(name)}}}
+this.transform=function(node,rank){
+this.doc_string=$get_docstring(node)
+var instance_decl=new $Node()
+var local_ns='$locals_'+this.id.replace(/\./g,'_')
+var js=';var '+local_ns+'={}'
+js +=', $locals = '+local_ns+';'
+new $NodeJSCtx(instance_decl,js)
+node.insert(0,instance_decl)
+var ret_obj=new $Node()
+new $NodeJSCtx(ret_obj,'return '+local_ns+';')
+node.insert(node.children.length,ret_obj)
+var run_func=new $Node()
+new $NodeJSCtx(run_func,')();')
+node.parent.insert(rank+1,run_func)
+var scope=$get_scope(this)
+var name_ref=';$locals_'+scope.id.replace(/\./g,'_')
+name_ref +='["'+this.name+'"]'
+if(this.name=="FF"){
+var js=[name_ref +'=$B.$class_constructor1("'+this.name],pos=1}else{var js=[name_ref +'=$B.$class_constructor("'+this.name],pos=1}
+js[pos++]='",$'+this.name+'_'+this.random
+if(this.args!==undefined){
+var arg_tree=this.args.tree,args=[],kw=[]
+for(var i=0;i<arg_tree.length;i++){var _tmp=arg_tree[i]
+if(_tmp.tree[0].type=='kwarg'){kw.push(_tmp.tree[0])}
+else{args.push(_tmp.to_js())}}
+js[pos++]=',tuple(['+args.join(',')+']),['
+var _re=new RegExp('"','g')
+var _r=[],rpos=0
+for(var i=0;i<args.length;i++){_r[rpos++]='"'+args[i].replace(_re,'\\"')+'"'}
+js[pos++]=_r.join(',')+ ']'
+_r=[],rpos=0
+for(var i=0;i<kw.length;i++){var _tmp=kw[i]
+_r[rpos++]='["'+_tmp.tree[0].value+'",'+_tmp.tree[1].to_js()+']'}
+js[pos++]=',[' + _r.join(',')+ ']'}else{
+js[pos++]=',tuple([]),[],[]'}
+js[pos++]=')'
+var cl_cons=new $Node()
+new $NodeJSCtx(cl_cons,js.join(''))
+rank++
+node.parent.insert(rank+1,cl_cons)
+rank++
+var ds_node=new $Node()
+js=name_ref+'.$dict.__doc__='
+js +=(this.doc_string ||'None')+';'
+new $NodeJSCtx(ds_node,js)
+node.parent.insert(rank+1,ds_node)
+rank++
+js=name_ref+'.$dict.__module__=$locals_'+
+$get_module(this).module.replace(/\./g,'_')+'.__name__'
+var mod_node=new $Node()
+new $NodeJSCtx(mod_node,js)
+node.parent.insert(rank+1,mod_node)
+if(scope.ntype==='module'){var w_decl=new $Node()
+new $NodeJSCtx(w_decl,'$locals["'+ this.name+'"]='+this.name)}
+var end_node=new $Node()
+new $NodeJSCtx(end_node,'None;')
+node.parent.insert(rank+2,end_node)
+this.transformed=true}
+this.to_js=function(){this.js_processed=true
+return 'var $'+this.name+'_'+this.random+'=(function()'}}
+function $CompIfCtx(C){
+this.type='comp_if'
+C.parent.intervals.push($pos)
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return '(comp if) '+this.tree}
+this.to_js=function(){this.js_processed=true
+return $to_js(this.tree)}}
+function $ComprehensionCtx(C){
+this.type='comprehension'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return '(comprehension) '+this.tree}
+this.to_js=function(){this.js_processed=true
+var _i=[],pos=0 
+for(var j=0;j<this.tree.length;j++)_i[pos++]=this.tree[j].start
+return _i}}
+function $CompForCtx(C){
+this.type='comp_for'
+C.parent.intervals.push($pos)
+this.parent=C
+this.tree=[]
+this.expect='in'
+C.tree[C.tree.length]=this
+this.toString=function(){return '(comp for) '+this.tree}
+this.to_js=function(){this.js_processed=true
+return $to_js(this.tree)}}
+function $CompIterableCtx(C){
+this.type='comp_iterable'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return '(comp iter) '+this.tree}
+this.to_js=function(){this.js_processed=true
+return $to_js(this.tree)}}
+function $ConditionCtx(C,token){
+this.type='condition'
+this.token=token
+this.parent=C
+this.tree=[]
+if(token==='while'){this.loop_num=$loop_num++}
+C.tree[C.tree.length]=this
+this.toString=function(){return this.token+' '+this.tree}
+this.transform=function(node,rank){var scope=$get_scope(this)
+if(this.token=="while"){if(scope.ntype=='generator'){this.parent.node.loop_start=this.loop_num}
+var new_node=new $Node()
+var js='$locals["$no_break'+this.loop_num+'"]=true'
+new $NodeJSCtx(new_node,js)
+node.parent.insert(rank,new_node)
+return 2}}
+this.to_js=function(){this.js_processed=true
+var tok=this.token
+if(tok==='elif'){tok='else if'}
+var res=[tok+'(bool('],pos=1
+if(tok=='while'){
+if(__BRYTHON__.loop_timeout){var h='\n'+' '.repeat($get_node(this).indent),h4=h+' '.repeat(4),num=this.loop_num,test_timeout=h+'var $time'+num+' = new Date()'+h+
+'function $test_timeout'+num+'()'+h4+
+'{if((new Date())-$time'+num+'>'+
+__BRYTHON__.loop_timeout*1000+
+'){throw _b_.RuntimeError("script timeout")}'+
+h4+'return true'+h+'}\n'
+res.splice(0,0,test_timeout)
+res.push('$test_timeout'+num+'() && ')}
+res.push('$locals["$no_break'+this.loop_num+'"] && ')}else if(tok=='else if'){var line_info=$get_node(this).line_num+','+$get_scope(this).id
+res.push('($locals.$line_info="'+line_info+'") && ')}
+if(this.tree.length==1){res.push($to_js(this.tree)+'))')}else{
+res.push(this.tree[0].to_js()+'))')
+if(this.tree[1].tree.length>0){res.push('{'+this.tree[1].to_js()+'}')}}
+return res.join('')}}
+function $ContinueCtx(C){
+this.type='continue'
+this.parent=C
+C.tree[C.tree.length]=this
+this.toString=function(){return '(continue)'}
+this.to_js=function(){this.js_processed=true
+return 'continue'}}
+function $DebuggerCtx(C){
+this.type='continue'
+this.parent=C
+C.tree[C.tree.length]=this
+this.toString=function(){return '(debugger)'}
+this.to_js=function(){this.js_processed=true
+return 'debugger'}}
+function $DecoratorCtx(C){
+this.type='decorator'
+this.parent=C
+C.tree[C.tree.length]=this
+this.tree=[]
+this.toString=function(){return '(decorator) '+this.tree}
+this.transform=function(node,rank){var func_rank=rank+1,children=node.parent.children
+var decorators=[this.tree]
+while(1){if(func_rank>=children.length){$_SyntaxError(C,['decorator expects function'])}
+else if(children[func_rank].C.type=='node_js'){func_rank++}
+else if(children[func_rank].C.tree[0].type==='decorator'){decorators.push(children[func_rank].C.tree[0].tree)
+children.splice(func_rank,1)}else{break}}
+this.dec_ids=[]
+var pos=0
+for(var i=0;i<decorators.length;i++){this.dec_ids[pos++]='$id'+ $B.UUID()}
+if($B.async_enabled){var _block_async_flag=false;
+for(var i=0;i<decorators.length;i++){try{
+var name=decorators[i][0].tree[0].value
+if(name=="brython_block" ||name=="brython_async")_block_async_flag=true}catch(err){console.log(i);console.log(decorators[i][0])}}}
+var obj=children[func_rank].C.tree[0]
+if(obj.type=='def'){obj.decorated=true
+obj.alias='$dec'+$B.UUID()}
+var callable=children[func_rank].C
+var tail=''
+var scope=$get_scope(this)
+var ref='$locals["'+obj.name+'"]'
+var res=ref+'='
+for(var i=0;i<decorators.length;i++){
+res +='getattr('+this.dec_ids[i]+',"__call__")('
+tail +=')'}
+res +=(obj.decorated ? obj.alias : ref)+tail+';'
+$B.bound[scope.id][obj.name]=true
+var decor_node=new $Node()
+new $NodeJSCtx(decor_node,res)
+node.parent.insert(func_rank+1,decor_node)
+this.decorators=decorators
+if($B.async_enabled && _block_async_flag){
+if($B.block[scope.id]===undefined)$B.block[scope.id]={}
+$B.block[scope.id][obj.name]=true}}
+this.to_js=function(){if($B.async_enabled){if(this.processing !==undefined)return ""}
+this.js_processed=true
+var res=[],pos=0
+for(var i=0;i<this.decorators.length;i++){res[pos++]='var '+this.dec_ids[i]+'='+$to_js(this.decorators[i])+';'}
+return res.join('')}}
+function $DefCtx(C){this.type='def'
+this.name=null
+this.parent=C
+this.tree=[]
+this.locals=[]
+this.yields=[]
+C.tree[C.tree.length]=this
+this.enclosing=[]
+var scope=this.scope=$get_scope(this)
+var parent_block=scope
+while(parent_block.C && parent_block.C.tree[0].type=='class'){parent_block=parent_block.parent}
+while(parent_block.C && 
+'def' !=parent_block.C.tree[0].type &&
+'generator' !=parent_block.C.tree[0].type){parent_block=parent_block.parent}
+this.parent.node.parent_block=parent_block
+var pb=parent_block
+while(pb && pb.C){if(pb.C.tree[0].type=='def'){this.inside_function=true
+break}
+pb=pb.parent_block}
+this.module=scope.module
+this.positional_list=[]
+this.default_list=[]
+this.other_args=null
+this.other_kw=null
+this.after_star=[]
+this.set_name=function(name){var id_ctx=new $IdCtx(this,name)
+this.name=name
+this.id=this.scope.id+'_'+name
+this.id=this.id.replace(/\./g,'_')
+this.id +='_'+ $B.UUID()
+this.parent.node.id=this.id
+this.parent.node.module=this.module
+$B.added=$B.added ||{}
+$B.added[this.module]=$B.added[this.module]||{}
+$B.added[this.module][this.id]=true
+$B.modules[this.id]=this.parent.node
+$B.bound[this.id]={}
+$B.type[this.id]={}
+this.level=this.scope.level
+$B.bound[this.scope.id][name]=this
+try{$B.type[this.scope.id][name]='function'}catch(err){console.log(err,this.scope.id)}
+id_ctx.bound=true
+if(scope.is_function){if(scope.C.tree[0].locals.indexOf(name)==-1){scope.C.tree[0].locals.push(name)}}}
+this.toString=function(){return 'def '+this.name+'('+this.tree+')'}
+this.transform=function(node,rank){
+if(this.transformed!==undefined)return
+var scope=this.scope
+var pb=this.parent.node
+while(pb && pb.C){if(pb.C.tree[0].type=='def'){this.inside_function=true
+break}
+pb=pb.parent}
+this.doc_string=$get_docstring(node)
+this.rank=rank 
+var fglobs=this.parent.node.globals
+var indent=node.indent+16
+var header=$ws(indent)
+if(this.name.substr(0,15)=='lambda_'+$B.lambda_magic){var pblock=$B.modules[scope.id].parent_block
+if(pblock.C && pblock.C.tree[0].type=="def"){this.enclosing.push(pblock)}}
+var pnode=this.parent.node
+while(pnode.parent && pnode.parent.is_def_func){this.enclosing.push(pnode.parent.parent)
+pnode=pnode.parent.parent}
+var defaults=[],apos=0,dpos=0,defs1=[],dpos1=0
+this.argcount=0
+this.kwonlyargcount=0 
+this.varnames={}
+this.args=[]
+this.__defaults__=[]
+this.slots=[]
+var slot_list=[]
+var annotations=[]
+if(this.annotation){annotations.push('"return":'+this.annotation.to_js())}
+var func_args=this.tree[1].tree
+for(var i=0;i<func_args.length;i++){var arg=func_args[i]
+this.args[apos++]=arg.name
+this.varnames[arg.name]=true
+if(arg.type==='func_arg_id'){if(this.star_arg){this.kwonlyargcount++}
+else{this.argcount++}
+this.slots.push(arg.name+':null')
+slot_list.push('"'+arg.name+'"')
+if(arg.tree.length>0){defaults[dpos++]='"'+arg.name+'"'
+defs1[dpos1++]=arg.name+':'+$to_js(arg.tree)
+this.__defaults__.push($to_js(arg.tree))}}else if(arg.type=='func_star_arg'){if(arg.op=='*'){this.star_arg=arg.name}
+else if(arg.op=='**'){this.kw_arg=arg.name}}
+if(arg.annotation){annotations.push(arg.name+': '+arg.annotation.to_js())}}
+var flags=67
+if(this.star_arg){flags |=4}
+if(this.kw_arg){flags |=8}
+if(this.type=='generator'){flags |=32}
+var positional_str=[],positional_obj=[],pos=0
+for(var i=0,_len=this.positional_list.length;i<_len;i++){positional_str[pos]='"'+this.positional_list[i]+'"'
+positional_obj[pos++]=this.positional_list[i]+':null'}
+positional_str=positional_str.join(',')
+positional_obj='{'+positional_obj.join(',')+'}'
+var dobj=[],pos=0
+for(var i=0;i<this.default_list.length;i++){dobj[pos++]=this.default_list[i]+':null'}
+dobj='{'+dobj.join(',')+'}'
+var nodes=[],js
+var global_scope=scope
+if(global_scope.parent_block===undefined){alert('undef '+global_scope);console.log(global_scope)}
+while(global_scope.parent_block.id !=='__builtins__'){global_scope=global_scope.parent_block}
+var global_ns='$locals_'+global_scope.id.replace(/\./g,'_')
+var local_ns='$locals_'+this.id
+js='var '+local_ns+'={}, '
+js +='$local_name="'+this.id+'",$locals='+local_ns+';'
+var new_node=new $Node()
+new_node.locals_def=true
+new $NodeJSCtx(new_node,js)
+nodes.push(new_node)
+var enter_frame_node=new $Node(),enter_frame_node_rank=nodes.length
+var js=';$B.frames_stack.push([$local_name, $locals,'+
+'"'+global_scope.id+'", '+global_ns+']);' 
+enter_frame_node.enter_frame=true
+new $NodeJSCtx(enter_frame_node,js)
+nodes.push(enter_frame_node)
+this.env=[]
+var make_args_nodes=[],func_ref='$locals_'+scope.id.replace(/\./g,'_')+'["'+this.name+'"]'
+var js=this.type=='def' ? local_ns+' = $locals' : 'var $ns'
+js +=' = $B.args("'+this.name+'", '+
+this.argcount+', {'+this.slots.join(', ')+'}, '+
+'['+slot_list.join(', ')+'], arguments, '
+if(defs1.length){js +='$defaults, '}
+else{js +='{}, '}
+js +=this.other_args+', '+this.other_kw+');'
+var new_node=new $Node()
+new $NodeJSCtx(new_node,js)
+make_args_nodes.push(new_node)
+if(this.type=='generator'){
+var new_node=new $Node()
+new $NodeJSCtx(new_node,'for(var $var in $ns){$locals[$var]=$ns[$var]};')
+make_args_nodes.push(new_node)}
+var only_positional=false
+if(defaults.length==0 && this.other_args===null && this.other_kw===null &&
+this.after_star.length==0){
+only_positional=true
+var pos_nodes=[]
+if($B.debug>0 ||this.positional_list.length>0){
+nodes.push($NodeJS('var $len = arguments.length;'))
+var new_node=new $Node()
+var js='if($len>0 && arguments[$len-1].$nat)'
+new $NodeJSCtx(new_node,js)
+nodes.push(new_node)
+new_node.add(make_args_nodes[0])
+if(make_args_nodes.length>1){new_node.add(make_args_nodes[1])}
+var else_node=new $Node()
+new $NodeJSCtx(else_node,'else')
+nodes.push(else_node)}
+if($B.debug>0){
+var pos_len=this.positional_list.length
+js='if(arguments.length!='+pos_len+')'
+var wrong_nb_node=new $Node()
+new $NodeJSCtx(wrong_nb_node,js)
+else_node.add(wrong_nb_node)
+if(pos_len>0){
+js='if(arguments.length<'+pos_len+')'+
+'{var $missing='+pos_len+'-arguments.length;'+
+'throw TypeError("'+this.name+'() missing "+$missing+'+
+'" positional argument"+($missing>1 ? "s" : "")+": "'+
+'+new Array('+positional_str+').slice(arguments.length))}'
+new_node=new $Node()
+new $NodeJSCtx(new_node,js)
+wrong_nb_node.add(new_node)
+js='else if'}else{js='if'}
+js +='(arguments.length>'+pos_len+')'
+js +='{throw TypeError("'+this.name+'() takes '+pos_len
+js +=' positional argument'
+js +=(pos_len>1 ? "s" : "")
+js +=' but more were given")}'
+new_node=new $Node()
+new $NodeJSCtx(new_node,js)
+wrong_nb_node.add(new_node)}
+if(this.positional_list.length>0){if(this.type=='generator'){for(var i=0;i<this.positional_list.length;i++){var arg=this.positional_list[i]
+var new_node=new $Node()
+var js='$locals["'+arg+'"]='+arg
+new $NodeJSCtx(new_node,js)
+else_node.add(new_node)}}else{var pargs=[]
+for(var i=0;i<this.positional_list.length;i++){var arg=this.positional_list[i]
+pargs.push(arg+':'+arg)}
+else_node.add($NodeJS(local_ns+'=$locals={'+pargs.join(', ')+'}'))}}}else{nodes.push(make_args_nodes[0])
+if(make_args_nodes.length>1){nodes.push(make_args_nodes[1])}}
+nodes.push($NodeJS('$B.frames_stack[$B.frames_stack.length-1][1] = $locals;'))
+for(var i=nodes.length-1;i>=0;i--){node.children.splice(0,0,nodes[i])}
+var def_func_node=new $Node()
+if(only_positional){var params=Object.keys(this.varnames).join(', ')
+new $NodeJSCtx(def_func_node,'return function('+params+')')}else{new $NodeJSCtx(def_func_node,'return function()')}
+def_func_node.is_def_func=true
+def_func_node.module=this.module
+for(var i=0;i<node.children.length;i++){def_func_node.add(node.children[i])}
+var last_instr=node.children[node.children.length-1].C.tree[0]
+if(last_instr.type!=='return' && this.type!='generator'){def_func_node.add($NodeJS('return None'))}
+node.children=[]
+var default_node=new $Node()
+var js=';_b_.None;'
+if(defs1.length>0){js='var $defaults = {'+defs1.join(',')+'};'}
+new $NodeJSCtx(default_node,js)
+node.insert(0,default_node)
+node.add(def_func_node)
+var ret_node=new $Node()
+new $NodeJSCtx(ret_node,')();')
+node.parent.insert(rank+1,ret_node)
+var offset=2
+if(this.type==='generator' && !this.declared){var code=['var env=[], module=$B.last($B.frames_stack)[2]','for(var i=$B.frames_stack.length-1; i>=0; i--){','    var frame = $B.frames_stack[i]','    if(frame[2]!=module){break}','    env.push([frame[0], frame[1]])','}','env.push([module, $B.last($B.frames_stack)[3]])',
+]
+for(var i=0;i<code.length;i++){node.parent.insert(rank+offset,$NodeJS(code[i]))
+offset++}
+var sc=scope
+var env=[],pos=0
+while(sc && sc.id!=='__builtins__'){var sc_id=sc.id.replace(/\./g,'_')
+if(sc===scope){env[pos++]='["'+sc_id+'",$locals]'}else{env[pos++]='["'+sc_id+'",$locals_'+sc_id+']'}
+sc=sc.parent_block}
+var env_string='['+env.join(', ')+']'
+js='$B.$BRgenerator(env,"'+this.name+'", $locals_'+
+scope.id.replace(/\./g,'_')+'["'+this.name+'"],"'+this.id+'")'
+var gen_node=new $Node()
+gen_node.id=this.module
+var ctx=new $NodeCtx(gen_node)
+var expr=new $ExprCtx(ctx,'id',false)
+var name_ctx=new $IdCtx(expr,this.name)
+var assign=new $AssignCtx(expr)
+var expr1=new $ExprCtx(assign,'id',false)
+var js_ctx=new $NodeJSCtx(assign,js)
+expr1.tree.push(js_ctx)
+node.parent.insert(rank+offset,gen_node)
+this.declared=true
+offset++}
+var prefix=this.tree[0].to_js()
+if(this.decorated){prefix=this.alias}
+var indent=node.indent
+js=prefix+'.$infos = {'
+var name_decl=new $Node()
+new $NodeJSCtx(name_decl,js)
+node.parent.insert(rank+offset,name_decl)
+offset++
+js='    __name__:"'
+if(this.scope.ntype=='class'){js+=this.scope.C.tree[0].name+'.'}
+js +=this.name+'",'
+var name_decl=new $Node()
+new $NodeJSCtx(name_decl,js)
+node.parent.insert(rank+offset,name_decl)
+offset++
+var module=$get_module(this)
+new_node=new $Node()
+new $NodeJSCtx(new_node,'    __defaults__ : ['+this.__defaults__.join(', ')+'],')
+node.parent.insert(rank+offset,new_node)
+offset++
+var module=$get_module(this)
+new_node=new $Node()
+new $NodeJSCtx(new_node,'    __module__ : "'+module.module+'",')
+node.parent.insert(rank+offset,new_node)
+offset++
+js='    __doc__: '+(this.doc_string ||'None')+','
+new_node=new $Node()
+new $NodeJSCtx(new_node,js)
+node.parent.insert(rank+offset,new_node)
+offset++
+js='    __annotations__: {'+annotations.join(',')+'},'
+new_node=new $Node()
+new $NodeJSCtx(new_node,js)
+node.parent.insert(rank+offset,new_node)
+offset++
+for(var attr in $B.bound[this.id]){this.varnames[attr]=true}
+var co_varnames=[]
+for(var attr in this.varnames){co_varnames.push('"'+attr+'"')}
+var h='\n'+' '.repeat(indent+8)
+js='    __code__:{'+h+'__class__:$B.$CodeDict'
+h=','+h
+js +=h+'co_argcount:'+this.argcount
+js +=h+'co_filename:$locals_'+scope.module.replace(/\./g,'_')+'["__file__"]'
+js +=h+'co_firstlineno:'+node.line_num
+js +=h+'co_flags:'+flags
+js +=h+'co_kwonlyargcount:'+this.kwonlyargcount
+js +=h+'co_name: "'+this.name+'"'
+js +=h+'co_nlocals: '+co_varnames.length
+js +=h+'co_varnames: ['+co_varnames.join(', ')+']'
+js +='}\n};'
+js +='None;'
+new_node=new $Node()
+new $NodeJSCtx(new_node,js)
+node.parent.insert(rank+offset,new_node)
+if(this.type=='def'){var parent=enter_frame_node.parent
+for(var pos=0;pos<parent.children.length && 
+parent.children[pos]!==enter_frame_node;pos++){}
+var try_node=new $Node(),children=parent.children.slice(pos+1,parent.children.length),ctx=new $NodeCtx(try_node)
+parent.insert(pos+1,try_node)
+new $TryCtx(ctx)
+for(var i=0;i<children.length;i++){try_node.add(children[i])}
+parent.children.splice(pos+2,parent.children.length)
+var finally_node=new $Node(),ctx=new $NodeCtx(finally_node)
+new $SingleKwCtx(ctx,'finally')
+finally_node.add($NodeJS('$B.frames_stack.pop()'))
+parent.add(finally_node)}
+this.transformed=true
+return offset}
+this.to_js=function(func_name){this.js_processed=true
+func_name=func_name ||this.tree[0].to_js()
+if(this.decorated){func_name='var '+this.alias}
+return func_name+'=(function()'}}
+function $DelCtx(C){
+this.type='del'
+this.parent=C
+C.tree[C.tree.length]=this
+this.tree=[]
+this.toString=function(){return 'del '+this.tree}
+this.to_js=function(){this.js_processed=true
+if(this.tree[0].type=='list_or_tuple'){
+var res=[],pos=0
+for(var i=0;i<this.tree[0].tree.length;i++){var subdel=new $DelCtx(C)
+subdel.tree=[this.tree[0].tree[i]]
+res[pos++]=subdel.to_js()
+C.tree.pop()}
+this.tree=[]
+return res.join(';')}else{var expr=this.tree[0].tree[0]
+var scope=$get_scope(this)
+switch(expr.type){case 'id':
+return 'delete '+expr.to_js()+';'
+case 'list_or_tuple':
+var res=[],pos=0
+for(var i=0;i<expr.tree.length;i++){res[pos++]='delete '+expr.tree[i].to_js()}
+return res.join(';')
+case 'sub':
+expr.func='delitem'
+js=expr.to_js()
+expr.func='getitem'
+return js
+case 'op':
+$_SyntaxError(this,["can't delete operator"])
+case 'call':
+$_SyntaxError(this,["can't delete function call"])
+case 'attribute':
+return 'delattr('+expr.value.to_js()+',"'+expr.name+'")'
+default:
+$_SyntaxError(this,["can't delete "+expr.type])}}}}
+function $DictOrSetCtx(C){
+this.type='dict_or_set'
+this.real='dict_or_set'
+this.expect='id'
+this.closed=false
+this.start=$pos
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){switch(this.real){case 'dict':
+return '(dict) {'+this.items+'}'
+case 'set':
+return '(set) {'+this.tree+'}'}
+return '(dict_or_set) {'+this.tree+'}'}
+this.to_js=function(){this.js_processed=true
+switch(this.real){case 'dict':
+var res=[],pos=0
+for(var i=0;i<this.items.length;i+=2){res[pos++]='['+this.items[i].to_js()+','+this.items[i+1].to_js()+']'}
+return 'dict(['+res.join(',')+'])'+$to_js(this.tree)
+case 'set_comp':
+return 'set('+$to_js(this.items)+')'+$to_js(this.tree)
+case 'dict_comp':
+return 'dict('+$to_js(this.items)+')'+$to_js(this.tree)}
+return 'set(['+$to_js(this.items)+'])'+$to_js(this.tree)}}
+function $DoubleStarArgCtx(C){
+this.type='double_star_arg'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return '**'+this.tree}
+this.to_js=function(){this.js_processed=true
+return '{$nat:"pdict",arg:'+$to_js(this.tree)+'}'}}
+function $EllipsisCtx(C){
+this.type='ellipsis'
+this.parent=C
+this.nbdots=1
+C.tree[C.tree.length]=this
+this.toString=function(){return 'ellipsis'}
+this.to_js=function(){this.js_processed=true
+return '$B.builtins["Ellipsis"]'}}
+function $ExceptCtx(C){
+this.type='except'
+this.parent=C
+C.tree[C.tree.length]=this
+this.tree=[]
+this.expect='id'
+this.scope=$get_scope(this)
+this.toString=function(){return '(except) '}
+this.set_alias=function(alias){this.tree[0].alias=alias
+$B.bound[this.scope.id][alias]={level: this.scope.level}
+try{$B.type[this.scope.id][alias]='exception'}catch(err){console.log(err,this.scope.id)}}
+this.to_js=function(){
+this.js_processed=true
+switch(this.tree.length){case 0:
+return 'else'
+case 1:
+if(this.tree[0].name==='Exception')return 'else if(1)'}
+var res=[],pos=0
+for(var i=0;i<this.tree.length;i++){res[pos++]=this.tree[i].to_js()}
+var lnum=''
+if($B.debug>0){lnum='($locals.$line_info="'+$get_node(this).line_num+','+
+this.scope.id+'") && '}
+return 'else if('+lnum+'$B.is_exc('+this.error_name+',['+res.join(',')+']))'}}
+function $ExprCtx(C,name,with_commas){
+this.type='expr'
+this.name=name
+this.with_commas=with_commas
+this.expect=',' 
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return '(expr '+with_commas+') '+this.tree}
+this.to_js=function(arg){this.js_processed=true
+if(this.type==='list')return '['+$to_js(this.tree)+']'
+if(this.tree.length===1)return this.tree[0].to_js(arg)
+return 'tuple('+$to_js(this.tree)+')'}}
+function $ExprNot(C){
+this.type='expr_not'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return '(expr_not)'}}
+function $FloatCtx(C,value){
+this.type='float'
+this.value=value
+this.toString=function(){return 'float '+this.value}
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.to_js=function(){this.js_processed=true
+return 'float('+this.value+')'}}
+function $ForExpr(C){
+this.type='for'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.loop_num=$loop_num
+this.module=$get_scope(this).module
+$loop_num++
+this.toString=function(){return '(for) '+this.tree}
+this.transform=function(node,rank){var scope=$get_scope(this),mod_name=scope.module,target=this.tree[0],target_is_1_tuple=target.tree.length==1 && target.expect=='id',iterable=this.tree[1],num=this.loop_num,local_ns='$locals_'+scope.id.replace(/\./g,'_'),h='\n'+' '.repeat(node.indent+4)
+if(__BRYTHON__.loop_timeout){
+var test_timeout='var $time'+num+' = new Date()'+h+
+'function $test_timeout'+num+'(){if((new Date())-$time'+
+num+'>'+__BRYTHON__.loop_timeout*1000+
+'){throw _b_.RuntimeError("script timeout")}'+h+'return true}'}
+var $range=false
+if(target.tree.length==1 &&
+target.expct !='id' &&
+iterable.type=='expr' &&
+iterable.tree[0].type=='expr' &&
+iterable.tree[0].tree[0].type=='call'){var call=iterable.tree[0].tree[0]
+if(call.func.type=='id'){var func_name=call.func.value
+if(func_name=='range' && call.tree.length<3){$range=call}}}
+var new_nodes=[],pos=0
+var children=node.children
+var offset=1
+if($range && scope.ntype!='generator'){if(this.has_break){
+new_node=new $Node()
+new $NodeJSCtx(new_node,local_ns+'["$no_break'+num+'"]=true')
+new_nodes[pos++]=new_node}
+var range_is_builtin=false
+if(!scope.blurred){var _scope=$get_scope(this),found=[],fpos=0
+while(1){if($B.bound[_scope.id]['range']){found[fpos++]=_scope.id}
+if(_scope.parent_block){_scope=_scope.parent_block}
+else{break}}
+range_is_builtin=found.length==1 && found[0]=="__builtins__"
+if(found==['__builtins__']){range_is_builtin=true}}
+var test_range_node=new $Node()
+if(range_is_builtin){new $NodeJSCtx(test_range_node,'if(1)')}else{new $NodeJSCtx(test_range_node,'if('+call.func.to_js()+'===$B.builtins.range)')}
+new_nodes[pos++]=test_range_node
+var idt=target.to_js()
+if($range.tree.length==1){var start=0,stop=$range.tree[0].to_js()}else{var start=$range.tree[0].to_js(),stop=$range.tree[1].to_js()}
+var js=idt+'='+start+';'+h+'var $stop_'+num +'=$B.int_or_bool('+
+stop+'),'+h+
+'    $next'+num+'= '+idt+','+h+
+'    $safe'+num+'= typeof $next'+num+'=="number" && typeof '+
+'$stop_'+num+'=="number";'+h
+if(__BRYTHON__.loop_timeout){js +=test_timeout+h+'while($test_timeout'+num+'())'}else{js +='while(true)'}
+var for_node=new $Node()
+new $NodeJSCtx(for_node,js)
+for_node.add($NodeJS('if($safe'+num+' && $next'+num+'>= $stop_'+
+num+'){break}'))
+for_node.add($NodeJS('else if(!$safe'+num+
+' && $B.ge($next'+num+', $stop_'+num+
+')){break}'))
+for_node.add($NodeJS(idt+' = $next'+num))
+for_node.add($NodeJS('if($safe'+num+'){$next'+num+'+=1'+'}'))
+for_node.add($NodeJS('else{$next'+num+'=$B.add($next'+num+',1)}'))
+for(var i=0;i<children.length;i++){for_node.add(children[i].clone())}
+for_node.add($NodeJS('$locals.$line_info="'+node.line_num+','+
+scope.id+'"; None;'))
+var in_loop=false
+if(scope.ntype=='module'){var pnode=node.parent
+while(pnode){if(pnode.for_wrapper){in_loop=true;break}
+pnode=pnode.parent}}
+if(scope.ntype=='module' && !in_loop){var func_node=new $Node()
+func_node.for_wrapper=true
+js='function $f'+num+'('
+if(this.has_break){js +='$no_break'+num}
+js +=')'
+new $NodeJSCtx(func_node,js)
+test_range_node.add(func_node)
+func_node.add(for_node)
+if(this.has_break){new_node=new $Node()
+new $NodeJSCtx(new_node,'return $no_break'+num)
+func_node.add(new_node)}
+var end_func_node=new $Node()
+new $NodeJSCtx(end_func_node,'var $res'+num+'=$f'+num+'();')
+test_range_node.add(end_func_node)
+if(this.has_break){var no_break=new $Node()
+new $NodeJSCtx(no_break,'$no_break'+num+'=$res'+num)
+test_range_node.add(no_break)}}else{
+test_range_node.add(for_node)}
+if(range_is_builtin){node.parent.children.splice(rank,1)
+var k=0
+if(this.has_break){node.parent.insert(rank,new_nodes[0])
+k++}
+for(var i=new_nodes[k].children.length-1;i>=0;i--){node.parent.insert(rank+k,new_nodes[k].children[i])}
+node.parent.children[rank].line_num=node.line_num
+node.children=[]
+return 0}
+var else_node=new $Node()
+new $NodeJSCtx(else_node,'else')
+new_nodes[pos++]=else_node
+for(var i=new_nodes.length-1;i>=0;i--){node.parent.insert(rank+1,new_nodes[i])}
+this.test_range=true
+new_nodes=[],pos=0}
+var new_node=new $Node()
+new_node.line_num=$get_node(this).line_num
+var js='$locals["$next'+num+'"]'
+js +='=getattr(iter('+iterable.to_js()+'),"__next__");\n'
+new $NodeJSCtx(new_node,js)
+new_nodes[pos++]=new_node
+if(this.has_break){
+new_node=new $Node()
+new $NodeJSCtx(new_node,local_ns+'["$no_break'+num+'"]=true;')
+new_nodes[pos++]=new_node}
+var while_node=new $Node()
+if(__BRYTHON__.loop_timeout){js=test_timeout+h
+if(this.has_break){js +='while($test_timeout'+num+'() && '+
+local_ns+'["$no_break'+num+'"])'}
+else{js +='while($test_timeout'+num+'())'}}else{if(this.has_break){js='while('+local_ns+'["$no_break'+num+'"])'}
+else{js='while(1)'}}
+new $NodeJSCtx(while_node,js)
+while_node.C.loop_num=num 
+while_node.C.type='for' 
+while_node.line_num=node.line_num
+if(scope.ntype=='generator'){
+while_node.loop_start=num}
+new_nodes[pos++]=while_node
+node.parent.children.splice(rank,1)
+if(this.test_range){for(var i=new_nodes.length-1;i>=0;i--){else_node.insert(0,new_nodes[i])}}else{for(var i=new_nodes.length-1;i>=0;i--){node.parent.insert(rank,new_nodes[i])
+offset +=new_nodes.length}}
+var try_node=new $Node()
+new $NodeJSCtx(try_node,'try')
+while_node.add(try_node)
+var iter_node=new $Node()
+iter_node.parent=$get_node(this).parent
+iter_node.id=this.module
+var C=new $NodeCtx(iter_node)
+var target_expr=new $ExprCtx(C,'left',true)
+if(target_is_1_tuple){
+var t=new $ListOrTupleCtx(target_expr)
+t.real='tuple'
+t.tree=target.tree}else{target_expr.tree=target.tree}
+var assign=new $AssignCtx(target_expr)
+assign.tree[1]=new $JSCode('$locals["$next'+num+'"]()')
+try_node.add(iter_node)
+var catch_node=new $Node()
+var js='catch($err){if($B.is_exc($err,[StopIteration]))'
+js +='{delete $locals["$next'+num+'"];$B.clear_exc();break;}'
+js +='else{throw($err)}}' 
+new $NodeJSCtx(catch_node,js)
+while_node.add(catch_node)
+for(var i=0;i<children.length;i++){while_node.add(children[i].clone())}
+node.children=[]
+return 0}
+this.to_js=function(){this.js_processed=true
+var iterable=this.tree.pop()
+return 'for '+$to_js(this.tree)+' in '+iterable.to_js()}}
+function $FromCtx(C){
+this.type='from'
+this.parent=C
+this.module=''
+this.names=[]
+this.aliases={}
+C.tree[C.tree.length]=this
+this.expect='module'
+this.scope=$get_scope(this)
+this.add_name=function(name){this.names[this.names.length]=name
+if(name=='*'){this.scope.blurred=true}}
+this.transform=function(node,rank){if(!this.blocking){
+var mod_name=this.module.replace(/\$/g,'')
+if(this.names[0]=='*'){node.add($NodeJS('for(var $attr in $B.imported["'+mod_name+
+'"]){if($attr.charAt(0)!=="_"){$locals[$attr]=$B.imported["'+mod_name+'"][$attr]}};'))}else{for(var i=0;i<this.names.length;i++){var name=this.names[i]
+node.add($NodeJS('$locals["'+(this.aliases[name]||name)+
+'"]=$B.imported["'+mod_name+'"]["'+name+'"]'))}}
+for(var i=rank+1;i<node.parent.children.length;i++){node.add(node.parent.children[i])}
+node.parent.children.splice(rank+1,node.parent.children.length)
+node.parent.add($NodeJS(')'))}}
+this.bind_names=function(){
+var scope=$get_scope(this)
+for(var i=0;i<this.names.length;i++){var name=this.aliases[this.names[i]]||this.names[i]
+$B.bound[scope.id][name]={level: scope.level}
+$B.type[scope.id][name]=false }}
+this.toString=function(){return '(from) '+this.module+' (import) '+this.names+'(as)'+this.aliases}
+this.to_js=function(){this.js_processed=true
+var scope=$get_scope(this),mod=$get_module(this).module,res=[],pos=0,indent=$get_node(this).indent,head=' '.repeat(indent);
+var _mod=this.module.replace(/\$/g,''),package,packages=[]
+while(_mod.length>0){if(_mod.charAt(0)=='.'){if(package===undefined){if($B.imported[mod]!==undefined){package=$B.imported[mod].__package__}}else{package=$B.imported[package]}
+if(package===undefined){return 'throw SystemError("Parent module \'\' not loaded,'+
+' cannot perform relative import")'}else if(package=='None'){console.log('package is None !')}else{packages.push(package)}
+_mod=_mod.substr(1)}else{break}}
+if(_mod){packages.push(_mod)}
+this.module=packages.join('.')
+var mod_name=this.module.replace(/\$/g,''),localns='$locals_'+scope.id.replace(/\./g,'_');
+if(this.blocking){res[pos++]='$B.$import("';
+res[pos++]=mod_name+'",["';
+res[pos++]=this.names.join('","')+'"], {';
+var sep='';
+for(var attr in this.aliases){res[pos++]=sep + '"'+attr+'": "'+this.aliases[attr]+'"';
+sep=',';}
+res[pos++]='}, {}, true);';
+if(this.names[0]=='*'){res[pos++]='\n'+head+'for(var $attr in $B.imported["'+mod_name+
+'"]){if($attr.charAt(0)!=="_"){'+
+'$locals[$attr]=$B.imported["'+mod_name+'"][$attr]}};'}else{for(var i=0;i<this.names.length;i++){var name=this.names[i]
+res[pos++]='\n'+head+'$locals["'+(this.aliases[name]||name)+
+'"]=$B.imported["'+mod_name+'"]["'+name+'"];'}}
+res[pos++]='\n'+head+'None;';}else{res[pos++]='$B.$import_non_blocking("'+mod_name+'", function()'}
+if(this.names[0]=='*'){
+scope.blurred=true}
+return res.join('');}}
+function $FuncArgs(C){
+this.type='func_args'
+this.parent=C
+this.tree=[]
+this.names=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return 'func args '+this.tree}
+this.expect='id'
+this.has_default=false
+this.has_star_arg=false
+this.has_kw_arg=false
+this.to_js=function(){this.js_processed=true
+return $to_js(this.tree)}}
+function $FuncArgIdCtx(C,name){
+this.type='func_arg_id'
+this.name=name
+this.parent=C
+if(C.has_star_arg){C.parent.after_star.push('"'+name+'"')}else{C.parent.positional_list.push(name)}
+var node=$get_node(this)
+if($B.bound[node.id][name]){$_SyntaxError(C,["duplicate argument '"+name+"' in function definition"])}
+$B.bound[node.id][name]={level:1}
+$B.type[node.id][name]=false
+this.tree=[]
+C.tree[C.tree.length]=this
+var ctx=C
+while(ctx.parent!==undefined){if(ctx.type==='def'){ctx.locals.push(name)
+break}
+ctx=ctx.parent}
+this.expect='='
+this.toString=function(){return 'func arg id '+this.name +'='+this.tree}
+this.to_js=function(){this.js_processed=true
+return this.name+$to_js(this.tree)}}
+function $FuncStarArgCtx(C,op){
+this.type='func_star_arg'
+this.op=op
+this.parent=C
+this.node=$get_node(this)
+C.has_star_arg=op=='*'
+C.has_kw_arg=op=='**'
+C.tree[C.tree.length]=this
+this.toString=function(){return '(func star arg '+this.op+') '+this.name}
+this.set_name=function(name){this.name=name
+if(name=='$dummy'){return}
+if($B.bound[this.node.id][name]){$_SyntaxError(C,["duplicate argument '"+name+"' in function definition"])}
+$B.bound[this.node.id][name]={level:1}
+$B.type[this.node.id][name]=false
+var ctx=C
+while(ctx.parent!==undefined){if(ctx.type==='def'){ctx.locals.push(name)
+break}
+ctx=ctx.parent}
+if(op=='*'){ctx.other_args='"'+name+'"'}
+else{ctx.other_kw='"'+name+'"'}}}
+function $GlobalCtx(C){
+this.type='global'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.expect='id'
+this.toString=function(){return 'global '+this.tree}
+this.scope=$get_scope(this)
+$B._globals[this.scope.id]=$B._globals[this.scope.id]||{}
+this.add=function(name){$B._globals[this.scope.id][name]=true}
+this.to_js=function(){this.js_processed=true
+return ''}}
+function $IdCtx(C,value){
+this.type='id'
+this.toString=function(){return '(id) '+this.value+':'+(this.tree||'')}
+this.value=value
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+if(C.parent.type==='call_arg')this.call_arg=true
+this.scope=$get_scope(this)
+this.blurred_scope=this.scope.blurred
+this.env=clone($B.bound[this.scope.id])
+var ctx=C
+while(ctx.parent!==undefined){switch(ctx.type){case 'list_or_tuple':
+case 'dict_or_set':
+case 'call_arg':
+case 'def':
+case 'lambda':
+if(ctx.vars===undefined){ctx.vars=[value]}
+else if(ctx.vars.indexOf(value)===-1){ctx.vars.push(value)}
+if(this.call_arg&&ctx.type==='lambda'){if(ctx.locals===undefined){ctx.locals=[value]}
+else{ctx.locals.push(value)}}}
+ctx=ctx.parent}
+var scope=this.scope=$get_scope(this)
+if(C.type=='target_list' ||C.type=='packed' ||
+(C.type=='expr' && C.parent.type=='target_list')){
+$B.bound[scope.id][value]={level: scope.level}
+$B.type[scope.id][value]=false 
+this.bound=true}
+if(scope.ntype=='def' ||scope.ntype=='generator'){
+var _ctx=this.parent
+while(_ctx){if(_ctx.type=='list_or_tuple' && _ctx.is_comp())return
+_ctx=_ctx.parent}
+if(C.type=='expr' && C.parent.type=='comp_if'){
+return}else if(C.type=='global'){if(scope.globals===undefined){scope.globals=[value]}else if(scope.globals.indexOf(value)==-1){scope.globals.push(value)}}}
+this.to_js=function(arg){
+if(this.result!==undefined && this.scope.ntype=='generator'){return this.result}
+this.js_processed=true
+var val=this.value
+var is_local=$B.bound[this.scope.id][val]!==undefined
+var bound_before=$get_node(this).bound_before
+if(this.scope.nonlocals && this.scope.nonlocals[val]!==undefined){this.nonlocal=true}
+this.unbound=this.unbound ||(is_local && !this.bound && 
+bound_before && bound_before.indexOf(val)==-1)
+if(this.unbound && !this.nonlocal){if(this.scope.ntype=='def' ||this.scope.ntype=='generator'){return '$B.$local_search("'+val+'")'}else{return '$B.$search("'+val+'")'}}
+if(val=='__BRYTHON__' ||val=='$B'){return val}
+var innermost=$get_scope(this)
+var scope=innermost,found=[],module=scope.module
+var gs=innermost
+while(gs.parent_block && gs.parent_block.id!=='__builtins__'){gs=gs.parent_block}
+var global_ns='$locals_'+gs.id.replace(/\./g,'_')
+while(1){if($B.bound[scope.id]===undefined){console.log('name '+val+' undef '+scope.id)}
+if($B.type[scope.id]===undefined){console.log('name '+val+' type undef '+scope.id)}
+if($B._globals[scope.id]!==undefined &&
+$B._globals[scope.id][val]!==undefined){
+if($B.bound[gs.id][val]!==undefined ||this.bound){this.result=global_ns+'["'+val+'"]'
+return this.result}else{this.result='$B.$global_search("'+val+'")'
+return this.result}
+found=[gs]
+break}
+if(scope===innermost){
+var bound_before=$get_node(this).bound_before
+if(bound_before && !this.bound){if(bound_before.indexOf(val)>-1){found.push(scope)}
+else if(scope.C &&
+scope.C.tree[0].type=='def' &&
+scope.C.tree[0].env.indexOf(val)>-1){found.push(scope)}}else{if($B.bound[scope.id][val]){found.push(scope)}}}else{
+if($B.bound[scope.id]===undefined){console.log('no bound',scope.id)}
+if($B.bound[scope.id][val]){found.push(scope)}}
+if(scope.parent_block){scope=scope.parent_block}
+else{break}}
+this.found=found
+if(this.nonlocal && found[0]===innermost){found.shift()}
+if(val=='fghj'){console.log('found for',val,found)}
+if(found.length>0){
+if(!this.bound && found[0].C && found[0]===innermost
+&& val.charAt(0)!='$'){var locs=$get_node(this).locals ||{},nonlocs=innermost.nonlocals
+if(locs[val]===undefined && 
+((innermost.type!='def' ||innermost.type!='generator')&&
+innermost.C.tree[0].args.indexOf(val)==-1)&&
+(nonlocs===undefined ||nonlocs[val]===undefined)){this.result='$B.$local_search("'+val+'")'
+return this.result}}
+if(found.length>1 && found[0].C){if(found[0].C.tree[0].type=='class' && !this.bound){var ns0='$locals_'+found[0].id.replace(/\./g,'_'),ns1='$locals_'+found[1].id.replace(/\./g,'_'),res
+if(bound_before){if(bound_before.indexOf(val)>-1){this.found=$B.bound[found[0].id][val]
+res=ns0}else{this.found=$B.bound[found[1].id][val]
+res=ns1}
+this.result=res+'["'+val+'"]'
+return this.result}else{this.found=false
+var res=ns0 + '["'+val+'"]!==undefined ? '
+res +=ns0 + '["'+val+'"] : '
+this.result=res + ns1 + '["'+val+'"]'
+return this.result}}}
+var scope=found[0]
+this.found=$B.bound[scope.id][val]
+var scope_ns='$locals_'+scope.id.replace(/\./g,'_')
+if(scope.C===undefined){
+if(scope.id=='__builtins__'){if(gs.blurred){
+val='('+global_ns+'["'+val+'"] || '+val+')'}else{
+if(val!=='__builtins__'){val='$B.builtins.'+val}
+this.is_builtin=true}}else if(scope.id==scope.module){
+if(this.bound ||this.augm_assign){
+val=scope_ns+'["'+val+'"]'}else{if(scope===innermost && this.env[val]===undefined){var locs=$get_node(this).locals ||{}
+if(locs[val]===undefined){
+if(found.length>1 && found[1].id=='__builtins__'){this.is_builtin=true
+this.result='$B.builtins.'+val+$to_js(this.tree,'')
+return this.result}}
+this.result='$B.$search("'+val+'")'
+return this.result}else{if(scope.level<=2){
+val=scope_ns+'["'+val+'"]'}else{
+val='$B.$check_def("'+val+'",'+scope_ns+'["'+val+'"])'}}}}else{val=scope_ns+'["'+val+'"]'}}else if(scope===innermost){if($B._globals[scope.id]&& $B._globals[scope.id][val]){val=global_ns+'["'+val+'"]'}else if(!this.bound && !this.augm_assign){if(scope.level<=3){
+val='$locals["'+val+'"]'}else{
+val='$B.$check_def_local("'+val+'",$locals["'+val+'"])'}}else{val='$locals["'+val+'"]'}}else if(!this.bound && !this.augm_assign){
+if(scope.ntype=='generator'){
+var up=0,
+sc=innermost
+while(sc!==scope){up++;sc=sc.parent_block}
+var scope_name="$B.frames_stack[$B.frames_stack.length-1-"+up+"][1]"
+val='$B.$check_def_free("'+val+'",'+scope_name+'["'+val+'"])'}else{val='$B.$check_def_free("'+val+'",'+scope_ns+'["'+val+'"])'}}else{val=scope_ns+'["'+val+'"]'}
+this.result=val+$to_js(this.tree,'')
+return this.result}else{
+this.unknown_binding=true
+this.result='$B.$search("'+val+'")'
+return this.result}}}
+function $ImaginaryCtx(C,value){
+this.type='imaginary'
+this.value=value
+this.toString=function(){return 'imaginary '+this.value}
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.to_js=function(){this.js_processed=true
+return 'complex(0,'+this.value+')'}}
+function $ImportCtx(C){
+this.type='import'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.expect='id'
+this.toString=function(){return 'import '+this.tree}
+this.bind_names=function(){
+var scope=$get_scope(this)
+for(var i=0;i<this.tree.length;i++){if(this.tree[i].name==this.tree[i].alias){var name=this.tree[i].name,parts=name.split('.'),bound=name
+if(parts.length>1){bound=parts[0]}}else{bound=this.tree[i].alias}
+$B.bound[scope.id][bound]={level: scope.level}
+$B.type[scope.id][bound]='module'}}
+this.to_js=function(){this.js_processed=true
+var scope=$get_scope(this)
+var mod=scope.module
+var res=[],pos=0
+for(var i=0;i<this.tree.length;i++){var mod_name=this.tree[i].name,aliases=(this.tree[i].name==this.tree[i].alias)?
+'{}' :('{"' + mod_name + '" : "' +
+this.tree[i].alias + '"}'),localns='$locals_'+scope.id.replace(/\./g,'_');
+res[pos++]='$B.$import("'+mod_name+'", [],'+aliases+',' +
+localns + ', true);'}
+return res.join('')+ 'None;'}}
+function $ImportedModuleCtx(C,name){this.type='imported module'
+this.toString=function(){return ' (imported module) '+this.name}
+this.parent=C
+this.name=name
+this.alias=name
+C.tree[C.tree.length]=this
+this.to_js=function(){this.js_processed=true
+return '"'+this.name+'"'}}
+function $IntCtx(C,value){
+this.type='int'
+this.value=value
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return 'int '+this.value}
+this.to_js=function(){this.js_processed=true
+var v=parseInt(value[1],value[0])
+if(v>$B.min_int && v<$B.max_int){return v}
+else{return '$B.LongInt("'+value[1]+'", '+value[0]+')'}}}
+function $JSCode(js){this.js=js
+this.toString=function(){return this.js}
+this.to_js=function(){this.js_processed=true
+return this.js}}
+function $KwArgCtx(C){
+this.type='kwarg'
+this.parent=C.parent
+this.tree=[C.tree[0]]
+C.parent.tree.pop()
+C.parent.tree.push(this)
+var value=this.tree[0].value
+var ctx=C.parent.parent 
+if(ctx.kwargs===undefined){ctx.kwargs=[value]}
+else if(ctx.kwargs.indexOf(value)===-1){ctx.kwargs.push(value)}
+else{$_SyntaxError(C,['keyword argument repeated'])}
+var scope=$get_scope(this)
+this.toString=function(){return 'kwarg '+this.tree[0]+'='+this.tree[1]}
+this.to_js=function(){this.js_processed=true
+var key=this.tree[0].value
+if(key.substr(0,2)=='$$'){key=key.substr(2)}
+var res='{$nat:"kw",name:"'+key+'",'
+return res + 'value:'+$to_js(this.tree.slice(1,this.tree.length))+'}'}}
+function $LambdaCtx(C){
+this.type='lambda'
+this.parent=C
+C.tree[C.tree.length]=this
+this.tree=[]
+this.args_start=$pos+6
+this.vars=[]
+this.locals=[]
+this.toString=function(){return '(lambda) '+this.args_start+' '+this.body_start}
+this.to_js=function(){this.js_processed=true
+var module=$get_module(this)
+var src=$B.$py_src[module.id]
+var qesc=new RegExp('"',"g"),
+args=src.substring(this.args_start,this.body_start),body=src.substring(this.body_start+1,this.body_end)
+body=body.replace(/\n/g,' ')
+var scope=$get_scope(this)
+var rand=$B.UUID(),func_name='lambda_'+$B.lambda_magic+'_'+rand,py='def '+func_name+'('+args+'):\n'
+py +='    return '+body
+var lambda_name='lambda'+rand,module_name=module.id.replace(/\./g,'_'),scope_id=scope.id.replace(/\./g,'_')
+var js=$B.py2js(py,module_name,lambda_name,scope_id).to_js()
+js='(function(){\n'+js+'\nreturn $locals.'+func_name+'\n})()'
+delete $B.modules[lambda_name]
+$B.clear_ns(lambda_name)
+return js}}
+function $ListOrTupleCtx(C,real){
+this.type='list_or_tuple'
+this.start=$pos
+this.real=real
+this.expect='id'
+this.closed=false
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){switch(this.real){case 'list':
+return '(list) ['+this.tree+']'
+case 'list_comp':
+case 'gen_expr':
+return '('+this.real+') ['+this.intervals+'-'+this.tree+']'
+default: 
+return '(tuple) ('+this.tree+')'}}
+this.is_comp=function(){switch(this.real){case 'list_comp':
+case 'gen_expr':
+case 'dict_or_set_comp':
+return true}
+return false}
+this.get_src=function(){
+var scope=$get_scope(this)
+var ident=scope.id
+while($B.$py_src[ident]===undefined && $B.modules[ident].parent_block){ident=$B.modules[ident].parent_block.id}
+if($B.$py_src[ident]===undefined){
+return $B.$py_src[scope.module]}
+return $B.$py_src[ident]}
+this.ids=function(){
+var _ids={}
+for(var i=0;i<this.tree.length;i++){var item=this.tree[i]
+if(item.type=='id'){_ids[item.value]=true}
+else if(item.type=='expr' && item.tree[0].type=="id"){_ids[item.tree[0].value]=true}else if(item.type=='list_or_tuple' ||
+(item.type=="expr" && item.tree[0].type=='list_or_tuple')){if(item.type=="expr"){item=item.tree[0]}
+for(var attr in item.ids()){_ids[attr]=true}}}
+return _ids}
+this.to_js=function(){this.js_processed=true
+var scope=$get_scope(this)
+var sc=scope,scope_id=scope.id.replace(/\//g, '_')
+        var env = [], pos=0
+        while(sc && sc.id!=='__builtins__'){
+            if(sc===scope){
+                env[pos++]='["'+sc.id+'",$locals]'
+            }else{
+                env[pos++]='["'+sc.id+'",$locals_'+sc.id.replace(/\./g,'_')+']'}
+sc=sc.parent_block}
+var env_string='['+env.join(', ')+']'
+var module_name=$get_module(this).module
+switch(this.real){case 'list':
+return '$B.$list(['+$to_js(this.tree)+'])'
+case 'list_comp':
+case 'gen_expr':
+case 'dict_or_set_comp':
+var src=this.get_src()
+var res1=[],items=[]
+var qesc=new RegExp('"',"g")
+for(var i=1;i<this.intervals.length;i++){var txt=src.substring(this.intervals[i-1],this.intervals[i])
+items.push(txt)
+var lines=txt.split('\n')
+var res2=[],pos=0
+for(var j=0;j<lines.length;j++){var txt=lines[j]
+if(txt.replace(/ /g,'').length==0){continue}
+txt=txt.replace(/\n/g,' ')
+txt=txt.replace(/\\/g,'\\\\')
+txt=txt.replace(qesc,'\\"')
+res2[pos++]='"'+txt+'"'}
+res1.push('['+res2.join(',')+']')}
+var line_num=$get_node(this).line_num
+switch(this.real){case 'list_comp':
+var local_name=scope.id.replace(/\./g,'_')
+var lc=$B.$list_comp(items),
+py=lc[0],ix=lc[1],listcomp_name='lc'+ix,local_name=scope.id.replace(/\./g,'_')
+var save_pos=$pos
+var root=$B.py2js(py,module_name,listcomp_name,local_name,line_num)
+$pos=save_pos
+var js=root.to_js()
+delete $B.modules[listcomp_name]
+$B.clear_ns(listcomp_name)
+js +='return $locals_lc'+ix+'["x'+ix+'"]'
+js='(function(){'+js+'})()'
+return js
+case 'dict_or_set_comp':
+if(this.expression.length===1){return '$B.$gen_expr('+env_string+','+res1+')'}
+return '$B.$dict_comp('+env_string+','+res1+')'}
+return $B.$gen_expr1(module_name,scope_id,items,line_num)
+case 'tuple':
+if(this.tree.length===1 && this.has_comma===undefined){return this.tree[0].to_js()}
+return 'tuple(['+$to_js(this.tree)+'])'}}}
+function $NodeCtx(node){
+this.node=node
+node.C=this
+this.tree=[]
+this.type='node'
+var scope=null
+var tree_node=node
+while(tree_node.parent && tree_node.parent.type!=='module'){var ntype=tree_node.parent.C.tree[0].type
+var _break_flag=false
+switch(ntype){case 'def':
+case 'class':
+case 'generator':
+scope=tree_node.parent
+_break_flag=true}
+if(_break_flag)break
+tree_node=tree_node.parent}
+if(scope==null){scope=tree_node.parent ||tree_node }
+this.node.locals=clone($B.bound[scope.id])
+this.toString=function(){return 'node '+this.tree}
+this.to_js=function(){if(this.js!==undefined){return this.js}
+this.js_processed=true
+if(this.tree.length>1){var new_node=new $Node()
+var ctx=new $NodeCtx(new_node)
+ctx.tree=[this.tree[1]]
+new_node.indent=node.indent+4
+this.tree.pop()
+node.add(new_node)}
+if(node.children.length==0){this.js=$to_js(this.tree)+';'}else{this.js=$to_js(this.tree)}
+return this.js}}
+function $NodeJS(js){var node=new $Node()
+new $NodeJSCtx(node,js)
+return node}
+function $NodeJSCtx(node,js){
+this.node=node
+node.C=this
+this.type='node_js'
+this.tree=[js]
+this.toString=function(){return 'js '+js}
+this.to_js=function(){this.js_processed=true
+return js}}
+function $NonlocalCtx(C){
+this.type='global'
+this.parent=C
+this.tree=[]
+this.names={}
+C.tree[C.tree.length]=this
+this.expect='id'
+this.scope=$get_scope(this)
+this.scope.nonlocals=this.scope.nonlocals ||{}
+if(this.scope.C===undefined){$_SyntaxError(C,["nonlocal declaration not allowed at module level"])}
+this.toString=function(){return 'global '+this.tree}
+this.add=function(name){if($B.bound[this.scope.id][name]=='arg'){$_SyntaxError(C,["name '"+name+"' is parameter and nonlocal"])}
+this.names[name]=[false,$pos]
+this.scope.nonlocals[name]=true}
+this.transform=function(node,rank){var pscope=this.scope.parent_block
+if(pscope.C===undefined){$_SyntaxError(C,["no binding for nonlocal '"+
+$B.last(Object.keys(this.names))+"' found"])}else{while(pscope!==undefined && pscope.C!==undefined){for(var name in this.names){if($B.bound[pscope.id][name]!==undefined){this.names[name]=[true]}}
+pscope=pscope.parent_block}
+for(var name in this.names){if(!this.names[name][0]){console.log('nonlocal error, C '+C)
+$pos=this.names[name][1]
+$_SyntaxError(C,["no binding for nonlocal '"+name+"' found"])}}}}
+this.to_js=function(){this.js_processed=true
+return ''}}
+function $NotCtx(C){
+this.type='not'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return 'not ('+this.tree+')'}
+this.to_js=function(){this.js_processed=true
+return '!bool('+$to_js(this.tree)+')'}}
+function $OpCtx(C,op){
+this.type='op'
+this.op=op
+this.parent=C.parent
+this.tree=[C]
+this.scope=$get_scope(this)
+if(C.type=="expr"){if(['int','float','str'].indexOf(C.tree[0].type)>-1){this.left_type=C.tree[0].type}else if(C.tree[0].type=="id"){var binding=$B.bound[this.scope.id][C.tree[0].value]
+if(binding){this.left_type=binding.type}}}
+C.parent.tree.pop()
+C.parent.tree.push(this)
+this.toString=function(){return '(op '+this.op+') ['+this.tree+']'}
+this.to_js=function(){this.js_processed=true
+var comps={'==':'eq','!=':'ne','>=':'ge','<=':'le','<':'lt','>':'gt'}
+if(comps[this.op]!==undefined){var method=comps[this.op]
+if(this.tree[0].type=='expr' && this.tree[1].type=='expr'){var t0=this.tree[0].tree[0],t1=this.tree[1].tree[0]
+switch(t1.type){case 'int':
+switch(t0.type){case 'int':
+return t0.to_js()+this.op+t1.to_js()
+case 'str':
+return '$B.$TypeError("unorderable types: int() < str()")'
+case 'id':
+var res='typeof '+t0.to_js()+'=="number" ? '
+res +=t0.to_js()+this.op+t1.to_js()+' : '
+res +='getattr('+this.tree[0].to_js()
+res +=',"__'+method+'__")('+this.tree[1].to_js()+')'
+return res}
+break;
+case 'str':
+switch(t0.type){case 'str':
+return t0.to_js()+this.op+t1.to_js()
+case 'int':
+return '$B.$TypeError("unorderable types: str() < int()")'
+case 'id':
+var res='typeof '+t0.to_js()+'=="string" ? '
+res +=t0.to_js()+this.op+t1.to_js()+' : '
+res +='getattr('+this.tree[0].to_js()
+res +=',"__'+method+'__")('+this.tree[1].to_js()+')'
+return res}
+break;
+case 'id':
+if(t0.type=='id'){var res='typeof '+t0.to_js()+'!="object" && '
+res +='typeof '+t0.to_js()+'==typeof '+t1.to_js()
+res +=' ? '+t0.to_js()+this.op+t1.to_js()+' : '
+res +='getattr('+this.tree[0].to_js()
+res +=',"__'+method+'__")('+this.tree[1].to_js()+')'
+return res}
+break;}}}
+switch(this.op){case 'and':
+var res='$B.$test_expr($B.$test_item('+this.tree[0].to_js()+')&&'
+return res + '$B.$test_item('+this.tree[1].to_js()+'))'
+case 'or':
+var res='$B.$test_expr($B.$test_item('+this.tree[0].to_js()+')||'
+return res + '$B.$test_item('+this.tree[1].to_js()+'))'
+case 'in':
+return '$B.$is_member('+$to_js(this.tree)+')'
+case 'not_in':
+return '!$B.$is_member('+$to_js(this.tree)+')'
+case 'unary_neg':
+case 'unary_pos':
+case 'unary_inv':
+var op,method
+if(this.op=='unary_neg'){op='-';method='__neg__'}
+else if(this.op=='unary_pos'){op='+';method='__pos__'}
+else{op='~';method='__invert__'}
+if(this.tree[1].type=="expr"){var x=this.tree[1].tree[0]
+switch(x.type){case 'int':
+var v=parseInt(x.value[1],x.value[0])
+if(v>$B.min_int && v<$B.max_int){return op+v}
+return 'getattr('+x.to_js()+', "'+method+'")()'
+case 'float':
+return 'float('+op+x.value+')'
+case 'imaginary':
+return 'complex(0,'+op+x.value+')'}}
+return 'getattr('+this.tree[1].to_js()+',"'+method+'")()'
+case 'is':
+return this.tree[0].to_js()+ '===' + this.tree[1].to_js()
+case 'is_not':
+return this.tree[0].to_js()+ '!==' + this.tree[1].to_js()
+case '*':
+case '+':
+case '-':
+var op=this.op,vars=[],has_float_lit=false,scope=$get_scope(this)
+function is_simple(elt){if(elt.type=='expr' && elt.tree[0].type=='int'){return true}
+else if(elt.type=='expr' && elt.tree[0].type=='float'){has_float_lit=true
+return true}else if(elt.type=='expr' && elt.tree[0].type=='list_or_tuple'
+&& elt.tree[0].real=='tuple'
+&& elt.tree[0].tree.length==1
+&& elt.tree[0].tree[0].type=='expr'){return is_simple(elt.tree[0].tree[0].tree[0])}else if(elt.type=='expr' && elt.tree[0].type=='id'){var _var=elt.tree[0].to_js()
+if(vars.indexOf(_var)==-1){vars.push(_var)}
+return true}else if(elt.type=='op' &&['*','+','-'].indexOf(elt.op)>-1){for(var i=0;i<elt.tree.length;i++){if(!is_simple(elt.tree[i])){return false}}
+return true}
+return false}
+function get_type(ns,v){var t
+if(['int','float','str'].indexOf(v.type)>-1){t=v.type}else if(v.type=='id' && ns[v.value]){t=ns[v.value].type}
+return t}
+var e0=this.tree[0],e1=this.tree[1]
+if(is_simple(this)){var v0=this.tree[0].tree[0]
+var v1=this.tree[1].tree[0]
+if(vars.length==0 && !has_float_lit){
+return this.simple_js()}else if(vars.length==0){
+return 'new Number('+this.simple_js()+')'}else{
+var ns=$B.bound[scope.id],t0=get_type(ns,v0),t1=get_type(ns,v1)
+if((t0=='float' && t1=='float')||
+(this.op=='+' && t0=='str' && t1=='str')){this.result_type=t0
+return v0.to_js()+this.op+v1.to_js()}else if(['int','float'].indexOf(t0)>-1 &&
+['int','float'].indexOf(t1)>-1){if(t0=='int' && t1=='int'){this.result_type='int'}
+else{this.result_type='float'}
+switch(this.op){case '+':
+return '$B.add('+v0.to_js()+','+v1.to_js()+')'
+case '-':
+return '$B.sub('+v0.to_js()+','+v1.to_js()+')'
+case '*':
+return '$B.mul('+v0.to_js()+','+v1.to_js()+')'}}
+var tests=[],tests1=[],pos=0
+for(var i=0;i<vars.length;i++){
+tests[pos]='typeof '+vars[i]+'.valueOf() == "number"'
+tests1[pos++]='typeof '+vars[i]+' == "number"'}
+var res=[tests.join(' && ')+' ? '],pos=1
+res[pos++]='('+tests1.join(' && ')+' ? '
+res[pos++]=this.simple_js()
+res[pos++]=' : new $B.$FloatClass('+this.simple_js()+')'
+res[pos++]=')'
+if(this.op=='+'){res[pos++]=' : (typeof '+this.tree[0].to_js()+'=="string"'
+res[pos++]=' && typeof '+this.tree[1].to_js()
+res[pos++]='=="string") ? '+this.tree[0].to_js()
+res[pos++]='+'+this.tree[1].to_js()}
+res[pos++]=': getattr('+this.tree[0].to_js()+',"__'
+res[pos++]=$operators[this.op]+'__")'+'('+this.tree[1].to_js()+')'
+return '('+res.join('')+')'}}
+var res='getattr('+e0.to_js()+',"__'
+return res + $operators[this.op]+'__")'+'('+e1.to_js()+')'
+default:
+var res='getattr('+this.tree[0].to_js()+',"__'
+return res + $operators[this.op]+'__")'+'('+this.tree[1].to_js()+')'}}
+this.simple_js=function(){function sjs(elt){if(elt.type=='op'){return elt.simple_js()}
+else if(elt.type=='expr' && elt.tree[0].type=='list_or_tuple' 
+&& elt.tree[0].real=='tuple'
+&& elt.tree[0].tree.length==1 
+&& elt.tree[0].tree[0].type=='expr'){return '('+elt.tree[0].tree[0].tree[0].simple_js()+')'}else{return elt.tree[0].to_js()}}
+if(op=='+'){return '$B.add('+sjs(this.tree[0])+','+sjs(this.tree[1])+')'}
+else if(op=='-'){return '$B.sub('+sjs(this.tree[0])+','+sjs(this.tree[1])+')'}
+else if(op=='*'){return '$B.mul('+sjs(this.tree[0])+','+sjs(this.tree[1])+')'}
+else if(op=='/'){return '$B.div('+sjs(this.tree[0])+','+sjs(this.tree[1])+')'}
+else{return sjs(this.tree[0])+op+sjs(this.tree[1])}}}
+function $PackedCtx(C){
+this.type='packed'
+if(C.parent.type=='list_or_tuple'){for(var i=0;i<C.parent.tree.length;i++){var child=C.parent.tree[i]
+if(child.type=='expr' && child.tree.length>0 
+&& child.tree[0].type=='packed'){$_SyntaxError(C,["two starred expressions in assignment"])}}}
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return '(packed) '+this.tree}
+this.to_js=function(){this.js_processed=true
+return $to_js(this.tree)}}
+function $PassCtx(C){
+this.type='pass'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return '(pass)'}
+this.to_js=function(){this.js_processed=true
+return 'void(0)'}}
+function $RaiseCtx(C){
+this.type='raise'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return ' (raise) '+this.tree}
+this.to_js=function(){this.js_processed=true
+var res=''
+if(this.tree.length===0)return '$B.$raise()'
+var exc=this.tree[0],exc_js=exc.to_js()
+if(exc.type==='id' ||
+(exc.type==='expr' && exc.tree[0].type==='id')){res='if(isinstance('+exc_js+',type)){throw '+exc_js+'()}'
+return res + 'else{throw '+exc_js+'}'}
+while(this.tree.length>1)this.tree.pop()
+return res+'throw '+$to_js(this.tree)}}
+function $RawJSCtx(C,js){this.type="raw_js"
+C.tree[C.tree.length]=this
+this.parent=C
+this.toString=function(){return '(js) '+js}
+this.to_js=function(){this.js_processed=true
+return js}}
+function $ReturnCtx(C){
+this.type='return'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+var node=$get_node(this)
+while(node.parent){if(node.parent.C && node.parent.C.tree[0].type=='for'){node.parent.C.tree[0].has_return=true
+break}
+node=node.parent}
+this.toString=function(){return 'return '+this.tree}
+this.to_js=function(){this.js_processed=true
+if(this.tree.length==1 && this.tree[0].type=='abstract_expr'){
+this.tree.pop()
+new $IdCtx(new $ExprCtx(this,'rvalue',false),'None')}
+var scope=$get_scope(this)
+if(scope.ntype=='generator'){return 'return [$B.generator_return(' + $to_js(this.tree)+')]'}
+var node=$get_node(this),pnode,flag,leave_frame=true,in_try=false
+while(node && leave_frame){if(node.is_try){in_try=true
+pnode=node.parent,flag=false
+for(var i=0;i<pnode.children.length;i++){var child=pnode.children[i]
+if(!flag && child===node){flag=true;continue}
+if(flag){if(child.C.tree[0].type=="single_kw" &&
+child.C.tree[0].token=="finally"){leave_frame=false
+break}}}}
+node=node.parent}
+if(leave_frame && !in_try){
+var res='try{var $res = '+$to_js(this.tree)+';'+
+'$B.leave_frame($local_name);return $res}catch(err){'+
+'$B.leave_frame($local_name);throw err}'}else if(leave_frame){var res='var $res = '+$to_js(this.tree)+';'+
+'$B.leave_frame($local_name);return $res'}else{var res="return "+$to_js(this.tree)}
+var res="return "+$to_js(this.tree)
+return res}}
+function $SingleKwCtx(C,token){
+this.type='single_kw'
+this.token=token
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+if(token=="else"){var node=C.node
+var pnode=node.parent
+for(var rank=0;rank<pnode.children.length;rank++){if(pnode.children[rank]===node)break}
+var pctx=pnode.children[rank-1].C
+if(pctx.tree.length>0){var elt=pctx.tree[0]
+if(elt.type=='for' ||
+elt.type=='asyncfor' ||
+(elt.type=='condition' && elt.token=='while')){elt.has_break=true
+elt.else_node=$get_node(this)
+this.loop_num=elt.loop_num}}}
+this.toString=function(){return this.token}
+this.to_js=function(){this.js_processed=true
+if(this.token=='finally')return this.token
+if(this.loop_num!==undefined){var scope=$get_scope(this)
+var res='if($locals_'+scope.id.replace(/\./g,'_')
+return res +'["$no_break'+this.loop_num+'"])'}
+return this.token}}
+function $StarArgCtx(C){
+this.type='star_arg'
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+this.toString=function(){return '(star arg) '+this.tree}
+this.to_js=function(){this.js_processed=true
+return '{$nat:"ptuple",arg:'+$to_js(this.tree)+'}'}}
+function $StringCtx(C,value){
+this.type='str'
+this.parent=C
+this.tree=[value]
+this.raw=false
+C.tree[C.tree.length]=this
+this.toString=function(){return 'string '+(this.tree||'')}
+this.to_js=function(){this.js_processed=true
+var res='',type=null
+for(var i=0;i<this.tree.length;i++){if(this.tree[i].type=="call"){
+var js='(function(){throw TypeError("'+"'str'"+
+' object is not callable")}())'
+return js}else{var value=this.tree[i],is_bytes=value.charAt(0)=='b'
+if(type==null){type=is_bytes
+if(is_bytes){res+='bytes('}}else if(type!=is_bytes){return '$B.$TypeError("can\'t concat bytes to str")'}
+if(!is_bytes){res +=value.replace(/\n/g,'\\n\\\n')}else{res +=value.substr(1).replace(/\n/g,'\\n\\\n')}
+if(i<this.tree.length-1){res+='+'}}}
+if(is_bytes){res +=',"ISO-8859-1")'}
+return res}}
+function $SubCtx(C){
+this.type='sub'
+this.func='getitem' 
+this.value=C.tree[0]
+C.tree.pop()
+C.tree[C.tree.length]=this
+this.parent=C
+this.tree=[]
+this.toString=function(){return '(sub) (value) '+this.value+' (tree) '+this.tree}
+this.to_js=function(){this.js_processed=true
+if(this.func=='getitem' && this.value.type=='id'){var type=$get_node(this).locals[this.value.value],val=this.value.to_js()
+if(type=='list'||type=='tuple'){if(this.tree.length==1){return '$B.list_key('+val+
+', '+this.tree[0].to_js()+')'}else if(this.tree.length==2){return '$B.list_slice('+val+
+', '+(this.tree[0].to_js()||"null")+','+
+(this.tree[1].to_js()||"null")+')'}else if(this.tree.length==3){return '$B.list_slice_step('+val+
+', '+(this.tree[0].to_js()||"null")+','+
+(this.tree[1].to_js()||"null")+','+
+(this.tree[2].to_js()||"null")+')'}}}
+if(this.func=='getitem' && this.tree.length==1){return '$B.$getitem('+this.value.to_js()+',' + this.tree[0].to_js()+')'}
+var res='',shortcut=false
+if(this.func!=='delitem' && Array.isArray && 
+this.tree.length==1 && !this.in_sub){var expr='',x=this
+shortcut=true
+while(x.value.type=='sub'){expr +='['+x.tree[0].to_js()+']'
+x.value.in_sub=true
+x=x.value}
+var subs=x.value.to_js()+'['+x.tree[0].to_js()+']'
+res +='((Array.isArray('+x.value.to_js()+') || '
+res +='typeof '+x.value.to_js()+'=="string")'
+res +=' && '+subs+'!==undefined ?'
+res +=subs+expr+ ' : '}
+var val=this.value.to_js()
+res +='getattr('+val+',"__'+this.func+'__")('
+if(this.tree.length===1){res +=this.tree[0].to_js()+')'}else{var res1=[],pos=0
+for(var i=0;i<this.tree.length;i++){if(this.tree[i].type==='abstract_expr'){res1[pos++]='None'}
+else{res1[pos++]=this.tree[i].to_js()}}
+res +='slice(' + res1.join(',')+ '))'}
+return shortcut ? res+')' : res}}
+function $TargetListCtx(C){
+this.type='target_list'
+this.parent=C
+this.tree=[]
+this.expect='id'
+C.tree[C.tree.length]=this
+this.toString=function(){return '(target list) '+this.tree}
+this.to_js=function(){this.js_processed=true
+return $to_js(this.tree)}}
+function $TernaryCtx(C){
+this.type='ternary'
+this.parent=C.parent
+C.parent.tree.pop()
+C.parent.tree.push(this)
+C.parent=this
+this.tree=[C]
+this.toString=function(){return '(ternary) '+this.tree}
+this.to_js=function(){this.js_processed=true
+var res='bool('+this.tree[1].to_js()+') ? ' 
+res +=this.tree[0].to_js()+' : ' 
+return res + this.tree[2].to_js()}}
+function $TryCtx(C){
+this.type='try'
+this.parent=C
+C.tree[C.tree.length]=this
+this.toString=function(){return '(try) '}
+this.transform=function(node,rank){if(node.parent.children.length===rank+1){$_SyntaxError(C,"missing clause after 'try' 1")}else{var next_ctx=node.parent.children[rank+1].C.tree[0]
+switch(next_ctx.type){case 'except':
+case 'finally':
+case 'single_kw':
+break
+default:
+$_SyntaxError(C,"missing clause after 'try' 2")}}
+var scope=$get_scope(this)
+var $var='var $failed'+$loop_num
+var js=$var+'=false;'+
+'try'
+new $NodeJSCtx(node,js)
+node.is_try=true 
+var catch_node=new $Node()
+new $NodeJSCtx(catch_node,'catch($err'+$loop_num+')')
+catch_node.is_catch=true
+node.parent.insert(rank+1,catch_node)
+var new_node=new $Node()
+new $NodeJSCtx(new_node,$var+'=true;$B.pmframe=$B.last($B.frames_stack);if(0){}')
+catch_node.insert(0,new_node)
+var pos=rank+2
+var has_default=false 
+var has_else=false 
+var has_finally=false
+while(1){if(pos===node.parent.children.length){break}
+var ctx=node.parent.children[pos].C.tree[0]
+if(ctx.type==='except'){
+if(has_else){$_SyntaxError(C,"'except' or 'finally' after 'else'")}
+if(has_finally){$_SyntaxError(C,"'except' after 'finally'")}
+ctx.error_name='$err'+$loop_num
+if(ctx.tree.length>0 && ctx.tree[0].alias!==null
+&& ctx.tree[0].alias!==undefined){
+var new_node=new $Node()
+var alias=ctx.tree[0].alias
+var js='$locals["'+alias+'"]'
+js +='=$B.exception($err'+$loop_num+')'
+new $NodeJSCtx(new_node,js)
+node.parent.children[pos].insert(0,new_node)}
+catch_node.insert(catch_node.children.length,node.parent.children[pos])
+if(ctx.tree.length===0){if(has_default){$_SyntaxError(C,'more than one except: line')}
+has_default=true}
+node.parent.children.splice(pos,1)}else if(ctx.type==='single_kw' && ctx.token==='finally'){has_finally=true
+pos++}else if(ctx.type==='single_kw' && ctx.token==='else'){if(has_else){$_SyntaxError(C,"more than one 'else'")}
+if(has_finally){$_SyntaxError(C,"'else' after 'finally'")}
+has_else=true
+var else_body=node.parent.children[pos]
+node.parent.children.splice(pos,1)}else{break}}
+if(!has_default){
+var new_node=new $Node(),ctx=new $NodeCtx(new_node)
+catch_node.insert(catch_node.children.length,new_node)
+new $SingleKwCtx(ctx,'else')
+new_node.add($NodeJS('throw $err'+$loop_num))}
+if(has_else){var else_node=new $Node()
+else_node.module=scope.module
+new $NodeJSCtx(else_node,'if(!$failed'+$loop_num+')')
+for(var i=0;i<else_body.children.length;i++){else_node.add(else_body.children[i])}
+node.parent.insert(pos,else_node)
+pos++}
+$loop_num++}
+this.to_js=function(){this.js_processed=true
+return 'try'}}
+function $UnaryCtx(C,op){
+this.type='unary'
+this.op=op
+this.parent=C
+C.tree[C.tree.length]=this
+this.toString=function(){return '(unary) '+this.op}
+this.to_js=function(){this.js_processed=true
+return this.op}}
+function $WithCtx(C){
+this.type='with'
+this.parent=C
+C.tree[C.tree.length]=this
+this.tree=[]
+this.expect='as'
+this.scope=$get_scope(this)
+this.toString=function(){return '(with) '+this.tree}
+this.set_alias=function(arg){this.tree[this.tree.length-1].alias=arg
+$B.bound[this.scope.id][arg]={level: this.scope.level}
+$B.type[this.scope.id][arg]=false
+if(this.scope.ntype !=='module'){
+this.scope.C.tree[0].locals.push(arg)}}
+this.transform=function(node,rank){while(this.tree.length>1){
+var suite=node.children,item=this.tree.pop(),new_node=new $Node(),ctx=new $NodeCtx(new_node),with_ctx=new $WithCtx(ctx)
+item.parent=with_ctx
+with_ctx.tree=[item]
+for(var i=0;i<suite.length;i++){new_node.add(suite[i])}
+node.children=[new_node]}
+node.is_try=true 
+if(this.transformed)return 
+if(this.tree.length>1){var nw=new $Node()
+var ctx=new $NodeCtx(nw)
+nw.parent=node
+nw.module=node.module
+nw.indent=node.indent+4
+var wc=new $WithCtx(ctx)
+wc.tree=this.tree.slice(1)
+for(var i=0;i<node.children.length;i++){nw.add(node.children[i])}
+node.children=[nw]
+this.transformed=true
+return}
+var num=this.num=$loop_num 
+if(this.tree[0].alias===null){this.tree[0].alias='$temp'}
+if(this.tree[0].type=='expr' && 
+this.tree[0].tree[0].type=='list_or_tuple'){if(this.tree[1].type!='expr' ||
+this.tree[1].tree[0].type!='list_or_tuple'){$_SyntaxError(C)}
+if(this.tree[0].tree[0].tree.length!=this.tree[1].tree[0].tree.length){$_SyntaxError(C,['wrong number of alias'])}
+var ids=this.tree[0].tree[0].tree
+var alias=this.tree[1].tree[0].tree
+this.tree.shift()
+this.tree.shift()
+for(var i=ids.length-1;i>=0;i--){ids[i].alias=alias[i].value
+this.tree.splice(0,0,ids[i])}}
+var block=node.children 
+node.children=[]
+var try_node=new $Node()
+try_node.is_try=true
+new $NodeJSCtx(try_node,'try')
+node.add(try_node)
+if(this.tree[0].alias){var alias=this.tree[0].alias
+var js='$locals'+'["'+alias+'"] = $value'+num
+var value_node=new $Node()
+new $NodeJSCtx(value_node,js)
+try_node.add(value_node)}
+for(var i=0;i<block.length;i++){try_node.add(block[i])}
+var catch_node=new $Node()
+catch_node.is_catch=true 
+new $NodeJSCtx(catch_node,'catch($err'+$loop_num+')')
+var fbody=new $Node(),indent=node.indent+4
+var js='$exc'+num+' = false;$err'+$loop_num+'=$B.exception($err'+
+$loop_num+')\n'+' '.repeat(indent)+
+'if(!bool($ctx_manager_exit'+num+'($err'+$loop_num+
+'.__class__.$factory,'+'$err'+$loop_num+
+',getattr($err'+$loop_num+',"traceback"))))'
+js +='{throw $err'+$loop_num+'}'
+new $NodeJSCtx(fbody,js)
+catch_node.add(fbody)
+node.add(catch_node)
+var finally_node=new $Node()
+new $NodeJSCtx(finally_node,'finally')
+finally_node.C.type='single_kw'
+finally_node.C.token='finally'
+finally_node.is_except=true
+var fbody=new $Node()
+new $NodeJSCtx(fbody,'if($exc'+num+'){$ctx_manager_exit'+num+
+'(None,None,None)}')
+finally_node.add(fbody)
+node.parent.insert(rank+1,finally_node)
+$loop_num++
+this.transformed=true}
+this.to_js=function(){this.js_processed=true
+var indent=$get_node(this).indent,h=' '.repeat(indent),num=this.num,scope=$get_scope(this)
+var res='var $ctx_manager'+num+' = '+this.tree[0].to_js()+
+'\n'+h+'var $ctx_manager_exit'+num+
+'= getattr($ctx_manager'+num+',"__exit__")\n'+
+h+'var $value'+num+' = getattr($ctx_manager'+num+
+',"__enter__")()\n'
+res +=h+'var $exc'+num+' = true\n'
+return res + h+'try'}}
+function $YieldCtx(C){
+this.type='yield'
+this.toString=function(){return '(yield) '+this.tree}
+this.parent=C
+this.tree=[]
+C.tree[C.tree.length]=this
+switch(C.type){case 'node':
+break;
+case 'assign':
+case 'tuple':
+case 'list_or_tuple': 
+var ctx=C
+while(ctx.parent)ctx=ctx.parent
+ctx.node.yield_atoms.push(this)
+break;
+default:
+$_SyntaxError(C,'yield atom must be inside ()')}
+var scope=$get_scope(this)
+if(!scope.is_function){$_SyntaxError(C,["'yield' outside function"])}else if(scope.has_return_with_arguments){$_SyntaxError(C,["'return' with argument inside generator"])}
+var def=scope.C.tree[0]
+def.type='generator'
+def.yields.push(this)
+this.toString=function(){return '(yield) '+(this.from ? '(from) ' : '')+this.tree}
+this.transform=function(node,rank){if(this.from===true){
+var new_node=new $Node()
+node.parent.children.splice(rank,1)
+node.parent.insert(rank,new_node)
+var for_ctx=new $ForExpr(new $NodeCtx(new_node))
+new $IdCtx(new $ExprCtx(for_ctx,'id',false),'$temp'+$loop_num)
+for_ctx.tree[1]=this.tree[0]
+this.tree[0].parent=for_ctx
+var yield_node=new $Node()
+new_node.add(yield_node)
+new $IdCtx(new $YieldCtx(new $NodeCtx(yield_node)),'$temp'+$loop_num)
+var ph_node=new $Node()
+new $NodeJSCtx(ph_node,'// placeholder for generator sent value')
+ph_node.set_yield_value=true
+new_node.add(ph_node)
+for_ctx.transform(new_node,rank)
+$loop_num++}else{var new_node=new $Node()
+new $NodeJSCtx(new_node,'// placeholder for generator sent value')
+new_node.set_yield_value=true
+node.parent.insert(rank+1,new_node)}}
+this.to_js=function(){this.js_processed=true
+if(this.from===undefined)return $to_js(this.tree)||'None'
+return $to_js(this.tree)}}
+function $add_line_num(node,rank){if(node.type==='module'){var i=0
+while(i<node.children.length){i +=$add_line_num(node.children[i],i)}}else{var elt=node.C.tree[0],offset=1
+var flag=true
+var pnode=node
+while(pnode.parent!==undefined){pnode=pnode.parent}
+var mod_id=pnode.id
+if(node.line_num===undefined){flag=false}
+if(elt.type==='condition' && elt.token==='elif'){flag=false}
+else if(elt.type==='except'){flag=false}
+else if(elt.type==='single_kw'){flag=false}
+if(flag){
+var js=';$locals.$line_info="'+node.line_num+','+mod_id+'";'
+var new_node=new $Node()
+new $NodeJSCtx(new_node,js)
+node.parent.insert(rank,new_node)
+offset=2}
+var i=0
+while(i<node.children.length)i+=$add_line_num(node.children[i],i)
+if((elt.type=='condition' && elt.token=="while")
+||node.C.type=='for'){node.add($NodeJS('$locals.$line_info="'+node.line_num+','+
+mod_id+'";'))}
+return offset}}
+function $bind(name,scope_id,level){
+if($B.bound[scope_id][name]!==undefined){
+if(level>=$B.bound[scope_id][name].level){$B.bound[scope_id][name].level=level}}else{$B.bound[scope_id][name]={level: level}}}
+function $previous(C){var previous=C.node.parent.children[C.node.parent.children.length-2]
+if(!previous ||!previous.C){$_SyntaxError(C,'keyword not following correct keyword')}
+return previous.C.tree[0]}
+function $get_docstring(node){var doc_string=''
+if(node.children.length>0){var firstchild=node.children[0]
+if(firstchild.C.tree && firstchild.C.tree[0].type=='expr'){if(firstchild.C.tree[0].tree[0].type=='str')
+doc_string=firstchild.C.tree[0].tree[0].to_js()}}
+return doc_string}
+function $get_scope(C){
+var ctx_node=C.parent
+while(ctx_node.type!=='node'){ctx_node=ctx_node.parent}
+var tree_node=ctx_node.node,scope=null,level=1
+while(tree_node.parent && tree_node.parent.type!=='module'){var ntype=tree_node.parent.C.tree[0].type
+switch(ntype){case 'def':
+case 'class':
+case 'generator':
+var scope=tree_node.parent
+scope.ntype=ntype
+scope.is_function=ntype!='class'
+scope.level=level
+return scope}
+tree_node=tree_node.parent
+level++}
+var scope=tree_node.parent ||tree_node 
+scope.ntype="module"
+scope.level=level
+return scope}
+function $get_module(C){
+var ctx_node=C.parent
+while(ctx_node.type!=='node'){ctx_node=ctx_node.parent}
+var tree_node=ctx_node.node
+var scope=null
+while(tree_node.parent.type!=='module'){tree_node=tree_node.parent}
+var scope=tree_node.parent 
+scope.ntype="module"
+return scope}
+function $get_node(C){var ctx=C
+while(ctx.parent){ctx=ctx.parent}
+return ctx.node}
+function $get_blocks(name,scope){var res=[]
+while(true){if($B.bound[scope.id][name]!==undefined){res.push(scope.id)}
+if(scope.parent_block){if(scope.parent_block.id=='__builtins__'){if(scope.blurred){return false}}}else{break}
+scope=scope.parent_block}
+return res}
+function $set_type(scope,expr,value){
+if(expr.type=='expr'){expr=expr.tree[0]}
+while(value.type=='expr' && value.tree.length==1){value=value.tree[0]}
+if(value.type=='list_or_tuple' && value.real=='tuple' && 
+value.tree.length==1){return $set_type(scope.id,expr,value.tree[0])}
+if($B.type[scope.id]===undefined){return}
+if(expr.type=="id"){switch(value.type){case 'int':
+case 'str':
+$B.type[scope.id][expr.value]=value.type
+return
+case 'list_or_tuple':
+case 'dict_or_set':
+$B.type[scope.id][expr.value]=value.real
+return
+case 'id':
+$B.type[scope.id][expr.value]=$B.type[scope.id][value.value]
+return
+case 'call':
+var func_name=value.func.value
+if($B.bound.__builtins__[func_name]!==undefined){var blocks=$get_blocks(func_name,scope)
+if(blocks.length==1 && blocks[0]=='__builtins__'){switch(func_name){case 'int':
+case 'list':
+case 'str':
+$B.type[scope.id][expr.value]=func_name
+return}}}
+break
+default:
+break}}
+$B.type[scope.id][expr.value]=false}
+function $ws(n){return ' '.repeat(n)}
+function $to_js_map(tree_element){if(tree_element.to_js !==undefined)return tree_element.to_js()
+throw Error('no to_js() for '+tree_element)}
+function $to_js(tree,sep){if(sep===undefined){sep=','}
+return tree.map($to_js_map).join(sep)}
+var $expr_starters=['id','imaginary','int','float','str','bytes','[','(','{','not','lambda']
+function $arbo(ctx){while(ctx.parent!=undefined){ctx=ctx.parent}
+return ctx}
+function $transition(C,token){
+switch(C.type){case 'abstract_expr':
+switch(token){case 'id':
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case '[':
+case '(':
+case '{':
+case '.':
+case 'not':
+case 'lambda':
+case 'yield':
+C.parent.tree.pop()
+var commas=C.with_commas
+C=C.parent}
+switch(token){case 'id': 
+return new $IdCtx(new $ExprCtx(C,'id',commas),arguments[2])
+case 'str':
+return new $StringCtx(new $ExprCtx(C,'str',commas),arguments[2])
+case 'bytes':
+return new $StringCtx(new $ExprCtx(C,'bytes',commas),arguments[2])
+case 'int':
+return new $IntCtx(new $ExprCtx(C,'int',commas),arguments[2])
+case 'float':
+return new $FloatCtx(new $ExprCtx(C,'float',commas),arguments[2])
+case 'imaginary':
+return new $ImaginaryCtx(new $ExprCtx(C,'imaginary',commas),arguments[2])
+case '(':
+return new $ListOrTupleCtx(new $ExprCtx(C,'tuple',commas),'tuple')
+case '[':
+return new $ListOrTupleCtx(new $ExprCtx(C,'list',commas),'list')
+case '{':
+return new $DictOrSetCtx(new $ExprCtx(C,'dict_or_set',commas))
+case '.':
+return new $EllipsisCtx(new $ExprCtx(C,'ellipsis',commas))
+case 'not':
+if(C.type==='op'&&C.op==='is'){
+C.op='is_not'
+return C}
+return new $NotCtx(new $ExprCtx(C,'not',commas))
+case 'lambda':
+return new $LambdaCtx(new $ExprCtx(C,'lambda',commas))
+case 'op':
+var tg=arguments[2]
+switch(tg){case '*':
+C.parent.tree.pop()
+var commas=C.with_commas
+C=C.parent
+return new $PackedCtx(new $ExprCtx(C,'expr',commas))
+case '-':
+case '~':
+case '+':
+C.parent.tree.pop()
+var left=new $UnaryCtx(C.parent,tg)
+if(tg=='-'){var op_expr=new $OpCtx(left,'unary_neg')}
+else if(tg=='+'){var op_expr=new $OpCtx(left,'unary_pos')}
+else{var op_expr=new $OpCtx(left,'unary_inv')}
+return new $AbstractExprCtx(op_expr,false)
+case 'not':
+C.parent.tree.pop()
+var commas=C.with_commas
+C=C.parent
+return new $NotCtx(new $ExprCtx(C,'not',commas))}
+$_SyntaxError(C,'token '+token+' after '+C)
+case '=':
+$_SyntaxError(C,token)
+case 'yield':
+return new $AbstractExprCtx(new $YieldCtx(C),true)
+case ':':
+return $transition(C.parent,token,arguments[2])
+case ')':
+case ',':
+switch(C.parent.type){case 'list_or_tuple':
+case 'call_arg':
+case 'op':
+case 'yield':
+break
+default:
+$_SyntaxError(C,token)}}
+return $transition(C.parent,token,arguments[2])
+case 'annotation':
+return $transition(C.parent,token)
+case 'assert':
+if(token==='eol')return $transition(C.parent,token)
+$_SyntaxError(C,token)
+case 'assign':
+if(token==='eol'){if(C.tree[1].type=='abstract_expr'){$_SyntaxError(C,'token '+token+' after '+C)}
+C.guess_type()
+return $transition(C.parent,'eol')}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'attribute':
+if(token==='id'){var name=arguments[2]
+if(noassign[name]===true){$_SyntaxError(C,["cannot assign to "+name])}
+C.name=name
+return C.parent}
+$_SyntaxError(C,token)
+case 'augm_assign':
+if(token==='eol'){if(C.tree[1].type=='abstract_expr'){$_SyntaxError(C,'token '+token+' after '+C)}
+return $transition(C.parent,'eol')}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'break':
+if(token==='eol')return $transition(C.parent,'eol')
+$_SyntaxError(C,token)
+case 'call':
+switch(token){case ',':
+if(C.expect=='id'){$_SyntaxError(C,token)}
+return C
+case 'id':
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case '[':
+case '(':
+case '{':
+case '.':
+case 'not':
+case 'lambda':
+if(C.has_dstar)$_SyntaxError(C,token)
+C.expect=','
+return $transition(new $CallArgCtx(C),token,arguments[2])
+case ')':
+C.end=$pos
+return C.parent
+case 'op':
+C.expect=','
+switch(arguments[2]){case '-':
+case '~':
+case '+':
+C.expect=','
+return $transition(new $CallArgCtx(C),token,arguments[2])
+case '*':
+C.has_star=true;
+return new $StarArgCtx(C)
+case '**':
+C.has_dstar=true
+return new $DoubleStarArgCtx(C)}
+throw Error('SyntaxError')}
+return $transition(C.parent,token,arguments[2])
+case 'call_arg':
+switch(token){case 'id':
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case '[':
+case '(':
+case '{':
+case '.':
+case 'not':
+case 'lambda':
+if(C.expect==='id'){C.expect=','
+var expr=new $AbstractExprCtx(C,false)
+return $transition(expr,token,arguments[2])}
+break
+case '=':
+if(C.expect===','){return new $ExprCtx(new $KwArgCtx(C),'kw_value',false)}
+break
+case 'for':
+var lst=new $ListOrTupleCtx(C,'gen_expr')
+lst.vars=C.vars 
+lst.locals=C.locals
+lst.intervals=[C.start]
+C.tree.pop()
+lst.expression=C.tree
+C.tree=[lst]
+lst.tree=[]
+var comp=new $ComprehensionCtx(lst)
+return new $TargetListCtx(new $CompForCtx(comp))
+case 'op':
+if(C.expect==='id'){var op=arguments[2]
+C.expect=','
+switch(op){case '+':
+case '-':
+case '~':
+return $transition(new $AbstractExprCtx(C,false),token,op)
+case '*':
+return new $StarArgCtx(C)
+case '**':
+return new $DoubleStarArgCtx(C)}}
+$_SyntaxError(C,'token '+token+' after '+C)
+case ')':
+if(C.parent.kwargs &&
+$B.last(C.parent.tree).tree[0]&& 
+['kwarg','star_arg','double_star_arg'].indexOf($B.last(C.parent.tree).tree[0].type)==-1){$_SyntaxError(C,['non-keyword arg after keyword arg'])}
+if(C.tree.length>0){var son=C.tree[C.tree.length-1]
+if(son.type==='list_or_tuple'&&son.real==='gen_expr'){son.intervals.push($pos)}}
+return $transition(C.parent,token)
+case ':':
+if(C.expect===',' && C.parent.parent.type==='lambda'){return $transition(C.parent.parent,token)}
+break
+case ',':
+if(C.expect===','){if(C.parent.kwargs && 
+['kwarg','star_arg','double_star_arg'].indexOf($B.last(C.parent.tree).tree[0].type)==-1){console.log('err2')
+$_SyntaxError(C,['non-keyword arg after keyword arg'])}
+return $transition(C.parent,token,arguments[2])}
+console.log('C '+C+'token '+token+' expect '+C.expect)}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'class':
+switch(token){case 'id':
+if(C.expect==='id'){C.set_name(arguments[2])
+C.expect='(:'
+return C}
+break
+case '(':
+return new $CallCtx(C)
+case ':':
+return $BodyCtx(C)}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'comp_if':
+return $transition(C.parent,token,arguments[2])
+case 'comp_for':
+if(token==='in' && C.expect==='in'){C.expect=null
+return new $AbstractExprCtx(new $CompIterableCtx(C),true)}
+if(C.expect===null){
+return $transition(C.parent,token,arguments[2])}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'comp_iterable':
+return $transition(C.parent,token,arguments[2])
+case 'comprehension':
+switch(token){case 'if':
+return new $AbstractExprCtx(new $CompIfCtx(C),false)
+case 'for':
+return new $TargetListCtx(new $CompForCtx(C))}
+return $transition(C.parent,token,arguments[2])
+case 'condition':
+if(token===':')return $BodyCtx(C)
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'continue':
+if(token=='eol')return C.parent
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'ctx_manager_alias':
+switch(token){case ',':
+case ':':
+return $transition(C.parent,token,arguments[2])}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'decorator':
+if(token==='id' && C.tree.length===0){return $transition(new $AbstractExprCtx(C,false),token,arguments[2])}
+if(token==='eol'){return $transition(C.parent,token)}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'def':
+switch(token){case 'id':
+if(C.name){$_SyntaxError(C,'token '+token+' after '+C)}
+C.set_name(arguments[2])
+return C
+case '(':
+if(C.name===null){$_SyntaxError(C,'token '+token+' after '+C)}
+C.has_args=true;
+return new $FuncArgs(C)
+case 'annotation':
+return new $AbstractExprCtx(new $AnnotationCtx(C),true)
+case ':':
+if(C.has_args)return $BodyCtx(C)}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'del':
+if(token==='eol')return $transition(C.parent,token)
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'dict_or_set':
+if(C.closed){switch(token){case '[':
+return new $SubCtx(C.parent)
+case '(':
+return new $CallArgCtx(new $CallCtx(C))
+case 'op':
+return new $AbstractExprCtx(new $OpCtx(C,arguments[2]),false)}
+return $transition(C.parent,token,arguments[2])}else{if(C.expect===','){switch(token){case '}':
+switch(C.real){case 'dict_or_set':
+if(C.tree.length !==1)break
+C.real='set' 
+case 'set':
+case 'set_comp':
+case 'dict_comp':
+C.items=C.tree
+C.tree=[]
+C.closed=true
+return C
+case 'dict':
+if(C.tree.length%2===0){C.items=C.tree
+C.tree=[]
+C.closed=true
+return C}}
+$_SyntaxError(C,'token '+token+' after '+C)
+case ',':
+if(C.real==='dict_or_set'){C.real='set'}
+if(C.real==='dict' && C.tree.length%2){$_SyntaxError(C,'token '+token+' after '+C)}
+C.expect='id'
+return C
+case ':':
+if(C.real==='dict_or_set'){C.real='dict'}
+if(C.real==='dict'){C.expect=','
+return new $AbstractExprCtx(C,false)}else{$_SyntaxError(C,'token '+token+' after '+C)}
+case 'for':
+if(C.real==='dict_or_set'){C.real='set_comp'}
+else{C.real='dict_comp'}
+var lst=new $ListOrTupleCtx(C,'dict_or_set_comp')
+lst.intervals=[C.start+1]
+lst.vars=C.vars
+C.tree.pop()
+lst.expression=C.tree
+C.tree=[lst]
+lst.tree=[]
+var comp=new $ComprehensionCtx(lst)
+return new $TargetListCtx(new $CompForCtx(comp))}
+$_SyntaxError(C,'token '+token+' after '+C)}else if(C.expect==='id'){switch(token){case '}':
+if(C.tree.length==0){
+C.items=[]
+C.real='dict'}else{
+C.items=C.tree}
+C.tree=[]
+C.closed=true
+return C
+case 'id':
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case '[':
+case '(':
+case '{':
+case '.':
+case 'not':
+case 'lambda':
+C.expect=','
+var expr=new $AbstractExprCtx(C,false)
+return $transition(expr,token,arguments[2])
+case 'op':
+switch(arguments[2]){case '+':
+return C
+case '-':
+case '~':
+C.expect=','
+var left=new $UnaryCtx(C,arguments[2])
+if(arguments[2]=='-'){var op_expr=new $OpCtx(left,'unary_neg')}
+else if(arguments[2]=='+'){var op_expr=new $OpCtx(left,'unary_pos')}
+else{var op_expr=new $OpCtx(left,'unary_inv')}
+return new $AbstractExprCtx(op_expr,false)}
+$_SyntaxError(C,'token '+token+' after '+C)}
+$_SyntaxError(C,'token '+token+' after '+C)}
+return $transition(C.parent,token,arguments[2])}
+break
+case 'double_star_arg':
+switch(token){case 'id':
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case '[':
+case '(':
+case '{':
+case '.':
+case 'not':
+case 'lambda':
+return $transition(new $AbstractExprCtx(C,false),token,arguments[2])
+case ',':
+return C.parent
+case ')':
+return $transition(C.parent,token)
+case ':':
+if(C.parent.parent.type==='lambda'){return $transition(C.parent.parent,token)}}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'ellipsis':
+if(token=='.'){C.nbdots++;return C}
+else{if(C.nbdots!=3){$pos--;$_SyntaxError(C,'token '+token+' after '+C)}else{return $transition(C.parent,token,arguments[2])}}
+case 'except':
+switch(token){case 'id':
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case '[':
+case '(':
+case '{':
+case 'not':
+case 'lamdba':
+if(C.expect==='id'){C.expect='as'
+return $transition(new $AbstractExprCtx(C,false),token,arguments[2])}
+case 'as':
+if(C.expect==='as' && C.has_alias===undefined){C.expect='alias'
+C.has_alias=true
+return C}
+case 'id':
+if(C.expect==='alias'){C.expect=':'
+C.set_alias(arguments[2])
+return C}
+break
+case ':':
+var _ce=C.expect
+if(_ce=='id' ||_ce=='as' ||_ce==':'){return $BodyCtx(C)}
+break
+case '(':
+if(C.expect==='id' && C.tree.length===0){C.parenth=true
+return C}
+break
+case ')':
+if(C.expect==',' ||C.expect=='as'){C.expect='as'
+return C}
+case ',':
+if(C.parenth!==undefined && C.has_alias===undefined &&
+(C.expect=='as' ||C.expect==',')){C.expect='id'
+return C}}
+$_SyntaxError(C,'token '+token+' after '+C.expect)
+case 'expr':
+switch(token){case 'id':
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case 'lamdba':
+$_SyntaxError(C,'token '+token+' after '+C)
+break
+case '[':
+case '(':
+case '{':
+case '.':
+case 'not':
+if(C.expect==='expr'){C.expect=','
+return $transition(new $AbstractExprCtx(C,false),token,arguments[2])}}
+switch(token){case 'not':
+if(C.expect===',')return new $ExprNot(C)
+break
+case 'in':
+if(C.parent.type=='target_list'){
+return $transition(C.parent,token)}
+if(C.expect===',')return $transition(C,'op','in')
+break
+case ',':
+if(C.expect===','){if(C.with_commas){
+C.parent.tree.pop()
+var tuple=new $ListOrTupleCtx(C.parent,'tuple')
+tuple.implicit=true
+tuple.has_comma=true
+tuple.tree=[C]
+C.parent=tuple
+return tuple}}
+return $transition(C.parent,token)
+case '.':
+return new $AttrCtx(C)
+case '[':
+return new $AbstractExprCtx(new $SubCtx(C),true)
+case '(':
+return new $CallCtx(C)
+case 'op':
+var op_parent=C.parent,op=arguments[2]
+if(op_parent.type=='ternary' && op_parent.in_else){var new_op=new $OpCtx(C,op)
+return new $AbstractExprCtx(new_op,false)}
+var op1=C.parent,repl=null
+while(1){if(op1.type==='expr'){op1=op1.parent}
+else if(op1.type==='op'
+&&$op_weight[op1.op]>=$op_weight[op]
+&& !(op1.op=='**' && op=='**')
+){repl=op1;op1=op1.parent}else if(op1.type=="not" && $op_weight['not']>$op_weight[op]){repl=op1;op1=op1.parent}else{break}}
+if(repl===null){while(1){if(C.parent!==op1){C=C.parent
+op_parent=C.parent}else{break}}
+C.parent.tree.pop()
+var expr=new $ExprCtx(op_parent,'operand',C.with_commas)
+expr.expect=','
+C.parent=expr
+var new_op=new $OpCtx(C,op)
+return new $AbstractExprCtx(new_op,false)}else{
+if(op==='and' ||op==='or'){while(repl.parent.type==='not'||
+(repl.parent.type==='expr'&&repl.parent.parent.type==='not')){
+repl=repl.parent
+op_parent=repl.parent}}}
+if(repl.type==='op'){var _flag=false
+switch(repl.op){case '<':
+case '<=':
+case '==':
+case '!=':
+case 'is':
+case '>=':
+case '>':
+_flag=true}
+if(_flag){switch(op){case '<':
+case '<=':
+case '==':
+case '!=':
+case 'is':
+case '>=':
+case '>':
+var c2=repl.tree[1]
+var c2_clone=new Object()
+for(var attr in c2){c2_clone[attr]=c2[attr]}
+while(repl.parent && repl.parent.type=='op'){if($op_weight[repl.parent.op]<$op_weight[repl.op]){repl=repl.parent}else{break}}
+repl.parent.tree.pop()
+var and_expr=new $OpCtx(repl,'and')
+c2_clone.parent=and_expr
+and_expr.tree.push('xxx')
+var new_op=new $OpCtx(c2_clone,op)
+return new $AbstractExprCtx(new_op,false)}}}
+repl.parent.tree.pop()
+var expr=new $ExprCtx(repl.parent,'operand',false)
+expr.tree=[op1]
+repl.parent=expr
+var new_op=new $OpCtx(repl,op)
+return new $AbstractExprCtx(new_op,false)
+case 'augm_assign':
+if(C.expect===','){return new $AbstractExprCtx(new $AugmentedAssignCtx(C,arguments[2]),true)}
+break
+case '=':
+if(C.expect===','){if(C.parent.type==="call_arg"){return new $AbstractExprCtx(new $KwArgCtx(C),true)}else if(C.parent.type=="annotation"){return $transition(C.parent.parent,token,arguments[2])}
+while(C.parent!==undefined){C=C.parent
+if(C.type=='condition'){$_SyntaxError(C,'token '+token+' after '+C)}}
+C=C.tree[0]
+return new $AbstractExprCtx(new $AssignCtx(C),true)}
+break
+case 'if':
+if(C.parent.type!=='comp_iterable'){
+var ctx=C
+while(ctx.parent && ctx.parent.type=='op'){ctx=ctx.parent
+if(ctx.type=='expr' && ctx.parent && ctx.parent.type=='op'){ctx=ctx.parent}}
+return new $AbstractExprCtx(new $TernaryCtx(ctx),false)}}
+return $transition(C.parent,token)
+case 'expr_not':
+if(token=='in'){
+C.parent.tree.pop()
+return new $AbstractExprCtx(new $OpCtx(C.parent,'not_in'),false)}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'for': 
+switch(token){case 'in':
+return new $AbstractExprCtx(new $ExprCtx(C,'target list',true),false)
+case ':':
+return $BodyCtx(C)}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'from':
+switch(token){case 'id':
+if(C.expect=='id'){C.add_name(arguments[2])
+C.expect=','
+return C}
+if(C.expect==='alias'){C.aliases[C.names[C.names.length-1]]=arguments[2]
+C.expect=','
+return C}
+case '.':
+if(C.expect=='module'){if(token=='id'){C.module +=arguments[2]}
+else{C.module +='.'}
+return C}
+case 'import':
+C.blocking=token=='import'
+if(C.expect=='module'){C.expect='id'
+return C}
+case 'op':
+if(arguments[2]=='*' && C.expect=='id' 
+&& C.names.length==0){if($get_scope(C).ntype!=='module'){$_SyntaxError(C,["import * only allowed at module level"])}
+C.add_name('*')
+C.expect='eol'
+return C}
+case ',':
+if(C.expect==','){C.expect='id'
+return C}
+case 'eol':
+switch(C.expect){case ',':
+case 'eol':
+C.bind_names()
+return $transition(C.parent,token)
+default:
+$_SyntaxError(C,['trailing comma not allowed without surrounding parentheses'])}
+case 'as':
+if(C.expect==',' ||C.expect=='eol'){C.expect='alias'
+return C}
+case '(':
+if(C.expect=='id'){C.expect='id'
+return C}
+case ')':
+if(C.expect==',' ||C.expect=='id'){C.expect='eol'
+return C}}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'func_arg_id':
+switch(token){case '=':
+if(C.expect==='='){C.parent.has_default=true
+var def_ctx=C.parent.parent
+if(C.parent.has_star_arg){def_ctx.default_list.push(def_ctx.after_star.pop())}else{def_ctx.default_list.push(def_ctx.positional_list.pop())}
+return new $AbstractExprCtx(C,false)}
+break
+case ',':
+case ')':
+if(C.parent.has_default && C.tree.length==0 &&
+C.parent.has_star_arg===undefined){console.log('parent '+C.parent,C.parent)
+$pos -=C.name.length
+$_SyntaxError(C,['non-default argument follows default argument'])}else{return $transition(C.parent,token)}
+case ':':
+return new $AbstractExprCtx(new $AnnotationCtx(C),false)}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'func_args':
+switch(token){case 'id':
+if(C.expect==='id'){C.expect=','
+if(C.names.indexOf(arguments[2])>-1){$_SyntaxError(C,['duplicate argument '+arguments[2]+' in function definition'])}}
+return new $FuncArgIdCtx(C,arguments[2])
+case ',':
+if(C.has_kw_arg)$_SyntaxError(C,'duplicate kw arg')
+if(C.expect===','){C.expect='id'
+return C}
+$_SyntaxError(C,'token '+token+' after '+C)
+case ')':
+return C.parent
+case 'op':
+var op=arguments[2]
+C.expect=','
+if(op=='*'){if(C.has_star_arg){$_SyntaxError(C,'duplicate star arg')}
+return new $FuncStarArgCtx(C,'*')}
+if(op=='**')return new $FuncStarArgCtx(C,'**')
+$_SyntaxError(C,'token '+op+' after '+C)}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'func_star_arg':
+switch(token){case 'id':
+if(C.name===undefined){if(C.parent.names.indexOf(arguments[2])>-1){$_SyntaxError(C,['duplicate argument '+arguments[2]+' in function definition'])}}
+C.set_name(arguments[2])
+C.parent.names.push(arguments[2])
+return C 
+case ',':
+case ')':
+if(C.name===undefined){
+C.set_name('$dummy')
+C.parent.names.push('$dummy')}
+return $transition(C.parent,token)
+case ':':
+if(C.name===undefined){$_SyntaxError(C,'annotation on an unnamed parameter')}
+return new $AbstractExprCtx(new $AnnotationCtx(C),false)}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'global':
+switch(token){case 'id':
+if(C.expect==='id'){new $IdCtx(C,arguments[2])
+C.add(arguments[2])
+C.expect=','
+return C}
+break
+case ',': 
+if(C.expect===','){C.expect='id'
+return C}
+break
+case 'eol':
+if(C.expect===','){return $transition(C.parent,token)}
+break}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'id':
+switch(token){case '=':
+if(C.parent.type==='expr' &&
+C.parent.parent !==undefined &&
+C.parent.parent.type==='call_arg'){return new $AbstractExprCtx(new $KwArgCtx(C.parent),false)}
+return $transition(C.parent,token,arguments[2])
+case 'op':
+return $transition(C.parent,token,arguments[2])
+case 'id':
+case 'str':
+case 'int':
+case 'float':
+case 'imaginary':
+$_SyntaxError(C,'token '+token+' after '+C)}
+return $transition(C.parent,token,arguments[2])
+case 'import':
+switch(token){case 'id':
+if(C.expect==='id'){new $ImportedModuleCtx(C,arguments[2])
+C.expect=','
+return C}
+if(C.expect==='qual'){C.expect=','
+C.tree[C.tree.length-1].name +='.'+arguments[2]
+C.tree[C.tree.length-1].alias +='.'+arguments[2]
+return C}
+if(C.expect==='alias'){C.expect=','
+C.tree[C.tree.length-1].alias=arguments[2]
+return C}
+break
+case '.':
+if(C.expect===','){C.expect='qual'
+return C}
+break
+case ',':
+if(C.expect===','){C.expect='id'
+return C}
+break
+case 'as':
+if(C.expect===','){C.expect='alias'
+return C}
+break
+case 'eol':
+if(C.expect===','){C.bind_names()
+return $transition(C.parent,token)}
+break}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'imaginary':
+case 'int':
+case 'float':
+switch(token){case 'id':
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case '[':
+case '(':
+case '{':
+case 'not':
+case 'lamdba':
+$_SyntaxError(C,'token '+token+' after '+C)}
+return $transition(C.parent,token,arguments[2])
+case 'kwarg':
+if(token===',')return new $CallArgCtx(C.parent.parent)
+return $transition(C.parent,token)
+case 'lambda':
+if(token===':' && C.args===undefined){C.args=C.tree
+C.tree=[]
+C.body_start=$pos
+return new $AbstractExprCtx(C,false)}
+if(C.args!==undefined){
+C.body_end=$pos
+return $transition(C.parent,token)}
+if(C.args===undefined){return $transition(new $CallCtx(C),token,arguments[2])}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'list_or_tuple':
+if(C.closed){if(token==='[')return new $SubCtx(C.parent)
+if(token==='(')return new $CallCtx(C)
+return $transition(C.parent,token,arguments[2])}else{if(C.expect===','){switch(C.real){case 'tuple':
+case 'gen_expr':
+if(token===')'){C.closed=true
+if(C.real==='gen_expr'){C.intervals.push($pos)}
+return C.parent}
+break
+case 'list':
+case 'list_comp':
+if(token===']'){C.closed=true
+if(C.real==='list_comp'){C.intervals.push($pos)}
+return C}
+break
+case 'dict_or_set_comp':
+if(token==='}'){C.intervals.push($pos)
+return $transition(C.parent,token)}
+break}
+switch(token){case ',':
+if(C.real==='tuple'){C.has_comma=true}
+C.expect='id'
+return C
+case 'for':
+if(C.real==='list'){C.real='list_comp'}
+else{C.real='gen_expr'}
+C.intervals=[C.start+1]
+C.expression=C.tree
+C.tree=[]
+var comp=new $ComprehensionCtx(C)
+return new $TargetListCtx(new $CompForCtx(comp))}
+return $transition(C.parent,token,arguments[2])}else if(C.expect==='id'){switch(C.real){case 'tuple':
+if(token===')'){C.closed=true
+return C.parent}
+if(token=='eol' && C.implicit===true){C.closed=true
+return $transition(C.parent,token)}
+break
+case 'gen_expr':
+if(token===')'){C.closed=true
+return $transition(C.parent,token)}
+break
+case 'list':
+if(token===']'){C.closed=true
+return C}
+break}
+switch(token){case '=':
+if(C.real=='tuple' && C.implicit===true){C.closed=true
+C.parent.tree.pop()
+var expr=new $ExprCtx(C.parent,'tuple',false)
+expr.tree=[C]
+C.parent=expr
+return $transition(C.parent,token)}
+break
+case ')':
+break
+case ']':
+if(C.real=='tuple' && C.implicit===true){
+return $transition(C.parent,token,arguments[2])}else{break}
+case ',':
+$_SyntaxError(C,'unexpected comma inside list')
+default:
+C.expect=','
+var expr=new $AbstractExprCtx(C,false)
+return $transition(expr,token,arguments[2])}}else{return $transition(C.parent,token,arguments[2])}}
+case 'list_comp':
+switch(token){case ']':
+return C.parent
+case 'in':
+return new $ExprCtx(C,'iterable',true)
+case 'if':
+return new $ExprCtx(C,'condition',true)}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'node':
+switch(token){case 'id':
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case '[':
+case '(':
+case '{':
+case 'not':
+case 'lamdba':
+case '.':
+var expr=new $AbstractExprCtx(C,true)
+return $transition(expr,token,arguments[2])
+case 'op':
+switch(arguments[2]){case '*':
+case '+':
+case '-':
+case '~':
+var expr=new $AbstractExprCtx(C,true)
+return $transition(expr,token,arguments[2])}
+break
+case 'class':
+return new $ClassCtx(C)
+case 'continue':
+return new $ContinueCtx(C)
+case '__debugger__':
+return new $DebuggerCtx(C)
+case 'break':
+return new $BreakCtx(C)
+case 'def':
+return new $DefCtx(C)
+case 'for':
+return new $TargetListCtx(new $ForExpr(C))
+case 'if':
+case 'while':
+return new $AbstractExprCtx(new $ConditionCtx(C,token),false)
+case 'elif':
+var previous=$previous(C)
+if(['condition'].indexOf(previous.type)==-1 ||
+previous.token=='while'){$_SyntaxError(C,'elif after '+previous.type)}
+return new $AbstractExprCtx(new $ConditionCtx(C,token),false)
+case 'else':
+var previous=$previous(C)
+if(['condition','except','for'].indexOf(previous.type)==-1){$_SyntaxError(C,'else after '+previous.type)}
+return new $SingleKwCtx(C,token)
+case 'finally':
+var previous=$previous(C)
+if(['try','except'].indexOf(previous.type)==-1 &&
+(previous.type!='single_kw' ||previous.token!='else')){$_SyntaxError(C,'finally after '+previous.type)}
+return new $SingleKwCtx(C,token)
+case 'try':
+return new $TryCtx(C)
+case 'except':
+var previous=$previous(C)
+if(['try','except'].indexOf(previous.type)==-1){$_SyntaxError(C,'except after '+previous.type)}
+return new $ExceptCtx(C)
+case 'assert':
+return new $AbstractExprCtx(new $AssertCtx(C),'assert',true)
+case 'from':
+return new $FromCtx(C)
+case 'import':
+return new $ImportCtx(C)
+case 'global':
+return new $GlobalCtx(C)
+case 'nonlocal':
+return new $NonlocalCtx(C)
+case 'lambda':
+return new $LambdaCtx(C)
+case 'pass':
+return new $PassCtx(C)
+case 'raise':
+return new $RaiseCtx(C)
+case 'return':
+return new $AbstractExprCtx(new $ReturnCtx(C),true)
+case 'with':
+return new $AbstractExprCtx(new $WithCtx(C),false)
+case 'yield':
+return new $AbstractExprCtx(new $YieldCtx(C),true)
+case 'del':
+return new $AbstractExprCtx(new $DelCtx(C),true)
+case '@':
+return new $DecoratorCtx(C)
+case 'eol':
+if(C.tree.length===0){
+C.node.parent.children.pop()
+return C.node.parent.C}
+return C}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'not':
+switch(token){case 'in':
+C.parent.parent.tree.pop()
+return new $ExprCtx(new $OpCtx(C.parent,'not_in'),'op',false)
+case 'id':
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case '[':
+case '(':
+case '{':
+case '.':
+case 'not':
+case 'lamdba':
+var expr=new $AbstractExprCtx(C,false)
+return $transition(expr,token,arguments[2])
+case 'op':
+var a=arguments[2]
+if('+'==a ||'-'==a ||'~'==a){var expr=new $AbstractExprCtx(C,false)
+return $transition(expr,token,arguments[2])}}
+return $transition(C.parent,token)
+case 'op':
+if(C.op===undefined){$_SyntaxError(C,['C op undefined '+C])}
+if(C.op.substr(0,5)=='unary'){if(C.parent.type=='assign' ||C.parent.type=='return'){
+C.parent.tree.pop()
+var t=new $ListOrTupleCtx(C.parent,'tuple')
+t.tree.push(C)
+C.parent=t
+return t}}
+switch(token){case 'id':
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case '[':
+case '(':
+case '{':
+case '.':
+case 'not':
+case 'lamdba':
+return $transition(new $AbstractExprCtx(C,false),token,arguments[2])
+case 'op':
+switch(arguments[2]){case '+':
+case '-':
+case '~':
+return new $UnaryCtx(C,arguments[2])}
+default:
+if(C.tree[C.tree.length-1].type=='abstract_expr'){$_SyntaxError(C,'token '+token+' after '+C)}}
+var t0=C.tree[0],t1=C.tree[1]
+if(t0.tree && t1.tree){t0=t0.tree[0]
+t1=t1.tree[0]}
+return $transition(C.parent,token)
+case 'packed':
+if(token==='id'){new $IdCtx(C,arguments[2])
+C.parent.expect=','
+return C.parent}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'pass':
+if(token==='eol')return C.parent
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'raise':
+switch(token){case 'id':
+if(C.tree.length===0){return new $IdCtx(new $ExprCtx(C,'exc',false),arguments[2])}
+break
+case 'from': 
+if(C.tree.length>0){return new $AbstractExprCtx(C,false)}
+break
+case 'eol':
+return $transition(C.parent,token)}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'return':
+var no_args=C.tree[0].type=='abstract_expr'
+if(!no_args){var scope=$get_scope(C)
+if(scope.ntype=='generator'){$_SyntaxError(C,["'return' with argument inside generator"])}
+scope.has_return_with_arguments=true}
+return $transition(C.parent,token)
+case 'single_kw':
+if(token===':')return $BodyCtx(C)
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'star_arg':
+switch(token){case 'id':
+if(C.parent.type=="target_list"){C.tree.push(arguments[2])
+C.parent.expect=','
+console.log('return parent',C.parent)
+return C.parent}
+return $transition(new $AbstractExprCtx(C,false),token,arguments[2])
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case '[':
+case '(':
+case '{':
+case 'not':
+case 'lamdba':
+return $transition(new $AbstractExprCtx(C,false),token,arguments[2])
+case ',':
+return $transition(C.parent,token)
+case ')':
+return $transition(C.parent,token)
+case ':':
+if(C.parent.parent.type==='lambda'){return $transition(C.parent.parent,token)}}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'str':
+switch(token){case '[':
+return new $AbstractExprCtx(new $SubCtx(C.parent),false)
+case '(':
+C.parent.tree[0]=C
+return new $CallCtx(C.parent)
+case 'str':
+C.tree.push(arguments[2])
+return C}
+return $transition(C.parent,token,arguments[2])
+case 'sub':
+switch(token){case 'id':
+case 'imaginary':
+case 'int':
+case 'float':
+case 'str':
+case 'bytes':
+case '[':
+case '(':
+case '{':
+case '.':
+case 'not':
+case 'lamdba':
+var expr=new $AbstractExprCtx(C,false)
+return $transition(expr,token,arguments[2])
+case ']':
+return C.parent
+case ':':
+if(C.tree.length==0){new $AbstractExprCtx(C,false)}
+return new $AbstractExprCtx(C,false)}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'target_list':
+switch(token){case 'id':
+if(C.expect==='id'){C.expect=','
+return new $IdCtx(new $ExprCtx(C,'target',false),arguments[2])}
+case 'op':
+if(C.expect=='id' && arguments[2]=='*'){
+return new $PackedCtx(C)}
+case '(':
+case '[':
+if(C.expect==='id'){C.expect=','
+return new $TargetListCtx(C)}
+case ')':
+case ']':
+if(C.expect===',')return C.parent
+case ',':
+if(C.expect==','){C.expect='id'
+return C}}
+if(C.expect===','){return $transition(C.parent,token,arguments[2])}else if(token=='in'){
+return $transition(C.parent,token,arguments[2])}
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'ternary':
+if(token==='else'){C.in_else=true
+return new $AbstractExprCtx(C,false)}
+return $transition(C.parent,token,arguments[2])
+case 'try':
+if(token===':')return $BodyCtx(C)
+$_SyntaxError(C,'token '+token+' after '+C)
+case 'unary':
+switch(token){case 'int':
+case 'float':
+case 'imaginary':
+console.log(token,arguments[2],'after',C)
+var expr=C.parent
+C.parent.parent.tree.pop()
+var value=arguments[2]
+if(C.op==='-'){value="-"+value}
+else if(C.op==='~'){value=~value}
+return $transition(C.parent.parent,token,value)
+case 'id':
+C.parent.parent.tree.pop()
+var expr=new $ExprCtx(C.parent.parent,'call',false)
+var expr1=new $ExprCtx(expr,'id',false)
+new $IdCtx(expr1,arguments[2])
+if(true){
+var repl=new $AttrCtx(expr)
+if(C.op==='+'){repl.name='__pos__'}
+else if(C.op==='-'){repl.name='__neg__'}
+else{repl.name='__invert__'}
+var call=new $CallCtx(expr)
+return expr1}
+return C.parent
+case 'op':
+if('+'==arguments[2]||'-'==arguments[2]){var op=arguments[2]
+if(C.op===op){C.op='+'}else{C.op='-'}
+return C}}
+return $transition(C.parent,token,arguments[2])
+case 'with':
+switch(token){case 'id':
+if(C.expect==='id'){C.expect='as'
+return $transition(new $AbstractExprCtx(C,false),token,arguments[2])}
+if(C.expect==='alias'){if(C.parenth!==undefined){C.expect=','}
+else{C.expect=':'}
+C.set_alias(arguments[2])
+return C}
+break
+case 'as':
+return new $AbstractExprCtx(new $AliasCtx(C))
+case ':':
+switch(C.expect){case 'id':
+case 'as':
+case ':':
+return $BodyCtx(C)}
+break
+case '(':
+if(C.expect==='id' && C.tree.length===0){C.parenth=true
+return C}else if(C.expect=='alias'){console.log('C',C,'token',token)
+C.expect=':'
+return new $TargetListCtx(C,false)}
+break
+case ')':
+if(C.expect==',' ||C.expect=='as'){C.expect=':'
+return C}
+break
+case ',':
+if(C.parenth!==undefined && C.has_alias===undefined &&
+(C.expect==',' ||C.expect=='as')){C.expect='id'
+return C}else if(C.expect=='as'){C.expect='id'
+return C}else if(C.expect==':'){C.expect='id'
+return C}
+break}
+$_SyntaxError(C,'token '+token+' after '+C.expect)
+case 'yield':
+if(token=='from'){
+if(C.tree[0].type!='abstract_expr'){
+$_SyntaxError(C,"'from' must follow 'yield'")}
+C.from=true
+C.tree=[]
+return new $AbstractExprCtx(C,true)}
+return $transition(C.parent,token)}}
+$B.forbidden=['case','catch','constructor','Date','delete','default','enum','eval','extends','Error','history','function','location','Math','new','null','Number','RegExp','super','this','throw','var','toString']
+var s_escaped='abfnrtvxuU"'+"'"+'\\',is_escaped={}
+for(var i=0;i<s_escaped.length;i++){is_escaped[s_escaped.charAt(i)]=true}
+function $tokenize(src,module,locals_id,parent_block_id,line_info){var delimiters=[["#","\n","comment"],['"""','"""',"triple_string"],["'","'","string"],['"','"',"string"],["r'","'","raw_string"],['r"','"',"raw_string"]]
+var br_open={"(":0,"[":0,"{":0}
+var br_close={")":"(","]":"[","}":"{"}
+var br_stack=""
+var br_pos=[]
+var kwdict=["class","return","break","for","lambda","try","finally","raise","def","from","nonlocal","while","del","global","with","as","elif","else","if","yield","assert","import","except","raise","in",
+"pass","with","continue","__debugger__"
+]
+var unsupported=[]
+var $indented=['class','def','for','condition','single_kw','try','except','with']
+var punctuation={',':0,':':0},int_pattern=new RegExp("^\\d+(j|J)?"),float_pattern1=new RegExp("^\\d+\\.\\d*([eE][+-]?\\d+)?(j|J)?"),float_pattern2=new RegExp("^\\d+([eE][+-]?\\d+)(j|J)?"),hex_pattern=new RegExp("^0[xX]([0-9a-fA-F]+)"),octal_pattern=new RegExp("^0[oO]([0-7]+)"),binary_pattern=new RegExp("^0[bB]([01]+)"),id_pattern=new RegExp("[\\$_a-zA-Z]\\w*"),qesc=new RegExp('"',"g"),
+sqesc=new RegExp("'","g")
+var C=null
+var root=new $Node('module')
+root.module=module
+root.id=locals_id
+$B.modules[root.id]=root
+if(locals_id==parent_block_id){root.parent_block=$B.modules[parent_block_id].parent_block ||$B.modules['__builtins__']}else{root.parent_block=$B.modules[parent_block_id]||$B.modules['__builtins__']}
+root.line_info=line_info
+root.indent=-1
+if(locals_id!==module){$B.bound[locals_id]={}}
+var new_node=new $Node(),current=root,name="",_type=null,pos=0,indent=null,string_modifier=false
+var lnum=1
+while(pos<src.length){var flag=false
+var car=src.charAt(pos)
+if(indent===null){var indent=0
+while(pos<src.length){var _s=src.charAt(pos)
+if(_s==" "){indent++;pos++}
+else if(_s=="\t"){
+indent++;pos++
+if(indent%8>0)indent+=8-indent%8}else{break}}
+var _s=src.charAt(pos)
+if(_s=='\n'){pos++;lnum++;indent=null;continue}
+else if(_s==='#'){
+var offset=src.substr(pos).search(/\n/)
+if(offset===-1){break}
+pos+=offset+1;lnum++;indent=null;continue}
+new_node.indent=indent
+new_node.line_num=lnum
+new_node.module=module
+if(indent>current.indent){
+if(C!==null){if($indented.indexOf(C.tree[0].type)==-1){$pos=pos
+$_SyntaxError(C,'unexpected indent',pos)}}
+current.add(new_node)}else if(indent<=current.indent &&
+$indented.indexOf(C.tree[0].type)>-1 &&
+C.tree.length<2){$pos=pos
+$_SyntaxError(C,'expected an indented block',pos)}else{
+while(indent!==current.indent){current=current.parent
+if(current===undefined ||indent>current.indent){$pos=pos
+$_SyntaxError(C,'unexpected indent',pos)}}
+current.parent.add(new_node)}
+current=new_node
+C=new $NodeCtx(new_node)
+continue}
+if(car=="#"){var end=src.substr(pos+1).search('\n')
+if(end==-1){end=src.length-1}
+pos +=end+1;continue}
+if(car=='"' ||car=="'"){var raw=C.type=='str' && C.raw,bytes=false ,end=null;
+if(string_modifier){switch(string_modifier){case 'r': 
+raw=true
+break
+case 'u':
+break
+case 'b':
+bytes=true
+break
+case 'rb':
+case 'br':
+bytes=true;raw=true
+break}
+string_modifier=false}
+if(src.substr(pos,3)==car+car+car){_type="triple_string";end=pos+3}
+else{_type="string";end=pos+1}
+var escaped=false
+var zone=car
+var found=false
+while(end<src.length){if(escaped){zone+=src.charAt(end)
+if(raw && src.charAt(end)=='\\'){zone+='\\'}
+escaped=false;end+=1}else if(src.charAt(end)=="\\"){if(raw){if(end<src.length-1 && src.charAt(end+1)==car){zone +='\\\\'+car
+end +=2}else{zone +='\\\\'
+end++}
+escaped=true}else{
+if(src.charAt(end+1)=='\n'){
+end +=2
+lnum++}else{
+if(end < src.length-1 &&
+is_escaped[src.charAt(end+1)]==undefined){zone +='\\'}
+zone+='\\'
+escaped=true;end+=1}}}else if(src.charAt(end)=='\n' && _type!='triple_string'){
+$pos=end
+$_SyntaxError(C,["EOL while scanning string literal"])}else if(src.charAt(end)==car){if(_type=="triple_string" && src.substr(end,3)!=car+car+car){zone +=src.charAt(end)
+end++}else{
+found=true
+$pos=pos
+var $string=zone.substr(1),string=''
+for(var i=0;i<$string.length;i++){var $car=$string.charAt(i)
+if($car==car &&
+(raw ||(i==0 ||$string.charAt(i-1)!=='\\'))){string +='\\'}
+string +=$car}
+if(bytes){C=$transition(C,'str','b'+car+string+car)}else{C=$transition(C,'str',car+string+car)}
+C.raw=raw;
+pos=end+1
+if(_type=="triple_string"){pos=end+3}
+break}}else{
+zone +=src.charAt(end)
+if(src.charAt(end)=='\n'){lnum++}
+end++}}
+if(!found){if(_type==="triple_string"){$_SyntaxError(C,"Triple string end not found")}else{$_SyntaxError(C,"String end not found")}}
+continue}
+if(name=="" && car!='$'){
+if($B.regexIdentifier.exec(car)){name=car 
+var p0=pos
+pos++
+while(pos<src.length && $B.regexIdentifier.exec(src.substring(p0,pos+1))){name+=src.charAt(pos)
+pos++}}
+if(name){
+if(kwdict.indexOf(name)>-1){$pos=pos-name.length
+if(unsupported.indexOf(name)>-1){$_SyntaxError(C,"Unsupported Python keyword '"+name+"'")}
+C=$transition(C,name)}else if($operators[name]!==undefined 
+&& $B.forbidden.indexOf(name)==-1){
+if(name=='is'){
+var re=/^\s+not\s+/
+var res=re.exec(src.substr(pos))
+if(res!==null){pos +=res[0].length
+$pos=pos-name.length
+C=$transition(C,'op','is_not')}else{$pos=pos-name.length
+C=$transition(C,'op',name)}}else if(name=='not'){
+var re=/^\s+in\s+/
+var res=re.exec(src.substr(pos))
+if(res!==null){pos +=res[0].length
+$pos=pos-name.length
+C=$transition(C,'op','not_in')}else{$pos=pos-name.length
+C=$transition(C,name)}}else{$pos=pos-name.length
+C=$transition(C,'op',name)}}else if((src.charAt(pos)=='"'||src.charAt(pos)=="'")
+&&['r','b','u','rb','br'].indexOf(name.toLowerCase())!==-1){string_modifier=name.toLowerCase()
+name=""
+continue}else{
+if($B.forbidden.indexOf(name)>-1){name='$$'+name}
+$pos=pos-name.length
+C=$transition(C,'id',name)}
+name=""
+continue}}
+switch(car){case ' ':
+case '\t':
+pos++
+break
+case '.':
+if(pos<src.length-1 && /^\d$/.test(src.charAt(pos+1))){
+var j=pos+1
+while(j<src.length && src.charAt(j).search(/\d|e|E/)>-1){j++}
+C=$transition(C,'float','0'+src.substr(pos,j-pos))
+pos=j
+break}
+$pos=pos
+C=$transition(C,'.')
+pos++
+break
+case '0':
+var res=hex_pattern.exec(src.substr(pos))
+if(res){C=$transition(C,'int',[16,res[1]])
+pos +=res[0].length
+break}
+var res=octal_pattern.exec(src.substr(pos))
+if(res){C=$transition(C,'int',[8,res[1]])
+pos +=res[0].length
+break}
+var res=binary_pattern.exec(src.substr(pos))
+if(res){C=$transition(C,'int',[2,res[1]])
+pos +=res[0].length
+break}
+if(src.charAt(pos+1).search(/\d/)>-1){
+if(parseInt(src.substr(pos))===0){res=int_pattern.exec(src.substr(pos))
+$pos=pos
+C=$transition(C,'int',[10,res[0]])
+pos +=res[0].length
+break}else{$_SyntaxError(C,('invalid literal starting with 0'))}}
+case '0':
+case '1':
+case '2':
+case '3':
+case '4':
+case '5':
+case '6':
+case '7':
+case '8':
+case '9':
+var res=float_pattern1.exec(src.substr(pos))
+if(res){$pos=pos
+if(res[2]!==undefined){C=$transition(C,'imaginary',res[0].substr(0,res[0].length-1))}else{C=$transition(C,'float',res[0])}}else{res=float_pattern2.exec(src.substr(pos))
+if(res){$pos=pos
+if(res[2]!==undefined){C=$transition(C,'imaginary',res[0].substr(0,res[0].length-1))}else{C=$transition(C,'float',res[0])}}else{res=int_pattern.exec(src.substr(pos))
+$pos=pos
+if(res[1]!==undefined){C=$transition(C,'imaginary',res[0].substr(0,res[0].length-1))}else{C=$transition(C,'int',[10,res[0]])}}}
+pos +=res[0].length
+break
+case '\n':
+lnum++
+if(br_stack.length>0){
+pos++;}else{
+if(current.C.tree.length>0){$pos=pos
+C=$transition(C,'eol')
+indent=null
+new_node=new $Node()}else{new_node.line_num=lnum}
+pos++}
+break
+case '(':
+case '[':
+case '{':
+br_stack +=car
+br_pos[br_stack.length-1]=[C,pos]
+$pos=pos
+C=$transition(C,car)
+pos++
+break
+case ')':
+case ']':
+case '}':
+if(br_stack==""){$_SyntaxError(C,"Unexpected closing bracket")}else if(br_close[car]!=br_stack.charAt(br_stack.length-1)){$_SyntaxError(C,"Unbalanced bracket")}else{
+br_stack=br_stack.substr(0,br_stack.length-1)
+$pos=pos
+C=$transition(C,car)
+pos++}
+break
+case '=':
+if(src.charAt(pos+1)!="="){$pos=pos
+C=$transition(C,'=')
+pos++;}else{
+$pos=pos
+C=$transition(C,'op','==')
+pos+=2}
+break
+case ',':
+case ':': 
+$pos=pos
+C=$transition(C,car)
+pos++
+break
+case ';':
+$transition(C,'eol')
+if(current.C.tree.length===0){
+$pos=pos
+$_SyntaxError(C,'invalid syntax')}
+var pos1=pos+1
+var ends_line=false
+while(pos1<src.length){var _s=src.charAt(pos1)
+if(_s=='\n' ||_s=='#'){ends_line=true;break}
+else if(_s==' '){pos1++}
+else{break}}
+if(ends_line){pos++;break}
+new_node=new $Node()
+new_node.indent=$get_node(C).indent
+new_node.line_num=lnum
+new_node.module=module
+$get_node(C).parent.add(new_node)
+current=new_node
+C=new $NodeCtx(new_node)
+pos++
+break
+case '/':
+case '%':
+case '&':
+case '>':
+case '<':
+case '-':
+case '+':
+case '*':
+case '/':
+case '^':
+case '=':
+case '|':
+case '~':
+case '!':
+if(car=='-' && src.charAt(pos+1)=='>'){C=$transition(C,'annotation')
+pos +=2
+continue}
+var op_match=""
+for(var op_sign in $operators){if(op_sign==src.substr(pos,op_sign.length)
+&& op_sign.length>op_match.length){op_match=op_sign}}
+$pos=pos
+if(op_match.length>0){if(op_match in $augmented_assigns){C=$transition(C,'augm_assign',op_match)}else{C=$transition(C,'op',op_match)}
+pos +=op_match.length}else{$_SyntaxError(C,'invalid character: '+car)}
+break
+case '\\':
+if(src.charAt(pos+1)=='\n'){lnum++ 
+pos+=2
+break}
+case '@':
+$pos=pos
+C=$transition(C,car)
+pos++
+break
+default:
+$pos=pos;$_SyntaxError(C,'unknown token ['+car+']')}}
+if(br_stack.length!=0){var br_err=br_pos[0]
+$pos=br_err[1]
+$_SyntaxError(br_err[0],["Unbalanced bracket "+br_stack.charAt(br_stack.length-1)])}
+if(C!==null && $indented.indexOf(C.tree[0].type)>-1){$pos=pos-1
+$_SyntaxError(C,'expected an indented block',pos)}
+return root}
+$B.py2js=function(src,module,locals_id,parent_block_id,line_info){
+var t0=new Date().getTime()
+src=src.replace(/\r\n/gm,'\n')
+if(src.charAt(src.length-1)!="\n"){src+='\n'}
+var locals_is_module=Array.isArray(locals_id)
+if(locals_is_module){locals_id=locals_id[0]}
+var internal=locals_id.charAt(0)=='$'
+var local_ns='$locals_'+locals_id.replace(/\./g,'_')
+var global_ns='$locals_'+module.replace(/\./g,'_')
+$B.bound[module]=$B.bound[module]||{}
+$B.bound[module]['__doc__']=true
+$B.bound[module]['__name__']=true
+$B.bound[module]['__file__']=true
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+for(var i=0;i<seqs.length;i++){if(seqs[i].length>0)non_empty[pos++]=seqs[i]}
+if(non_empty.length==0)break
+for(var i=0;i<non_empty.length;i++){var seq=non_empty[i],candidate=seq[0],not_head=[],pos=0
+for(var j=0;j<non_empty.length;j++){var s=non_empty[j]
+if(s.slice(1).indexOf(candidate)>-1){not_head[pos++]=s}}
+if(not_head.length>0){candidate=null}
+else{break}}
+if(candidate===null){throw _b_.TypeError("inconsistent hierarchy, no C3 MRO is possible")}
+mro[mpos++]=candidate
+for(var i=0;i<seqs.length;i++){var seq=seqs[i]
+if(seq[0]===candidate){
+seqs[i].shift()}}}
+if(mro[mro.length-1]!==_b_.object.$dict){mro[mpos++]=_b_.object.$dict}
+return mro}
+_b_.type=function(obj,bases,cl_dict){if(arguments.length==1){if(obj.__class__===$B.$factory){
+return obj.$dict.__class__.$factory}
+return $B.get_class(obj).$factory}
+return $B.$type.__new__(_b_.type,obj,bases,cl_dict)}
+_b_.type.__class__=$B.$factory
+$B.$type={$factory: _b_.type,__name__:'type'}
+$B.$type.__class__=$B.$type
+$B.$type.__mro__=[$B.$type,_b_.object.$dict]
+_b_.type.$dict=$B.$type
+$B.$type.__new__=function(cls,name,bases,cl_dict){
+var class_dict={__class__ : $B.$type,__name__ : name.replace('$$',''),__bases__ : bases,__dict__ : cl_dict,$methods :{},$slots: cl_dict.$slots}
+var items=$B.$dict_items(cl_dict);
+for(var i=0;i<items.length;i++){var name=items[i][0],v=items[i][1]
+class_dict[name]=v
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+&& v.__class__!==$B.$MethodDict){class_dict.$methods[name]=$B.make_method(name,class_dict,v,v)}}
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+class_dict.__class__=class_dict.__mro__[1].__class__
+var factory=$instance_creator(class_dict)
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+factory.$dict=class_dict
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+$B.$factory={__class__:$B.$type,$factory:_b_.type,is_class:true}
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+_b_.type.__class__=$B.$factory
+_b_.object.$dict.__class__=$B.$type
+_b_.object.__class__=$B.$factory
+$B.$type.__getattribute__=function(klass,attr){
+switch(attr){case '__call__':
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+case '__eq__':
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+return function(other){return klass.$factory!==other}
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+case '__doc__':
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+case '__setattr__':
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+return function(key){delete klass[key]}
+case '__hash__':
+return function(){if(arguments.length==0)return klass.__hashvalue__ ||$B.$py_next_hash--}}
+var res=klass[attr],is_class=true
+if(res===undefined){
+var mro=klass.__mro__
+if(mro===undefined){console.log('attr '+attr+' mro undefined for class '+klass+' name '+klass.__name__,klass,klass.__class__)}
+for(var i=0;i<mro.length;i++){var v=mro[i][attr]
+if(v!==undefined){res=v
+break}}
+var cl_mro=klass.__class__.__mro__
+if(res===undefined){
+var cl_mro=klass.__class__.__mro__
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+if(v!==undefined){res=v
+break}}}}
+if(res===undefined){
+var getattr=null
+for(var i=0;i<cl_mro.length;i++){if(cl_mro[i].__getattr__!==undefined){getattr=cl_mro[i].__getattr__
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+if(res===undefined && klass.$slots && klass.$slots[attr]!==undefined){return member_descriptor(klass.$slots[attr],attr)}
+if(res!==undefined){
+if(res.__class__===$B.$PropertyDict)return res
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+var res1=get_func.apply(null,[res,$B.builtins.None,klass])
+if(res1.__class__===$B.$factory){
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+if(typeof res1=='function'){res.__name__=attr
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+__repr__=__str__=function(){var x='<bound method '+klass.__name__+'.'+attr
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+break;
+case 'staticmethod':
+args=[]
+__repr__=__str__=function(attr){return function(){return '<function '+klass.__name__+'.'+attr+'>'}}(attr)
+break;}
+var method=(function(initial_args){return function(){
+var local_args=initial_args.slice()
+var pos=local_args.length
+for(var i=0;i < arguments.length;i++){local_args[pos++]=arguments[i]}
+return res.apply(null,local_args)}})(args)
+method.__class__=$B.$FunctionDict
+method.__eq__=function(other){return other.__func__===__func__}
+for(var attr in res){method[attr]=res[attr]}
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+method.__str__=__str__
+method.__code__={'__class__': $B.CodeDict}
+method.__doc__=res.__doc__ ||''
+method.im_class=klass
+return method}}}
+function $instance_creator(klass){
+if(klass.$instanciable!==undefined){console.log('klass',klass.__name__,'not instanciable')
+return function(){throw _b_.TypeError("Can't instantiate abstract "+
+"class interface with abstract methods")}}
+var new_func=null
+try{new_func=_b_.getattr(klass,'__new__')}
+catch(err){}
+var init_func=null
+try{init_func=_b_.getattr(klass,'__init__')}
+catch(err){}
+var simple=false
+if(klass.__bases__.length==0){simple=true}
+else if(klass.__bases__.length==1){switch(klass.__bases__[0]){case _b_.object:
+case _b_.type:
+simple=true
+break
+default:
+simple=false
+break}}
+if(simple && klass.__new__==undefined && init_func!==null){
+return function(){var obj={__class__:klass}
+init_func.apply(null,[obj].concat(Array.prototype.slice.call(arguments)))
+return obj}}
+return function(){var obj
+var _args=Array.prototype.slice.call(arguments)
+if(simple && klass.__new__==undefined){obj={__class__:klass}}else{if(new_func!==null){obj=new_func.apply(null,[klass.$factory].concat(_args))}}
+if(!obj.__initialized__){if(init_func!==null){init_func.apply(null,[obj].concat(_args))}}
+return obj}}
+function member_descriptor(klass,attr){return{__class__:member_descriptor.$dict,klass: klass,attr: attr}}
+member_descriptor.__class__=$B.$factory
+member_descriptor.$dict={__class__: $B.$type,__name__: 'member_descriptor',$factory: member_descriptor,__str__: function(self){return "<member '"+self.attr+"' of '"+self.klass.__name__+
+"' objects>"}}
+member_descriptor.$dict.__mro__=[member_descriptor.$dict ,_b_.object.$dict]
+function $MethodFactory(){}
+$MethodFactory.__class__=$B.$factory
+$B.$MethodDict={__class__:$B.$type,__name__:'method',$factory:$MethodFactory}
+$B.$MethodDict.__eq__=function(self,other){return self.$infos !==undefined &&
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+self.$infos.__func__===other.$infos.__func__ && 
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+$B.$MethodDict.__ne__=function(self,other){return !$B.$MethodDict.__eq__(self,other)}
+$B.$MethodDict.__getattribute__=function(self,attr){
+var infos=self.$infos.__func__.$infos
+if(infos && infos[attr]){if(attr=='__code__'){var res={__class__:$B.$CodeDict}
+for(var attr in infos.__code__){res[attr]=infos.__code__[attr]}
+return res}else{return infos[attr]}}else{return _b_.object.$dict.__getattribute__(self,attr)}}
+$B.$MethodDict.__mro__=[$B.$MethodDict,_b_.object.$dict]
+$B.$MethodDict.__repr__=$B.$MethodDict.__str__=function(self){var res='<bound method '+self.$infos.__class__.$dict.__name__+'.' 
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+return res+_b_.str(self.$infos.__self__)+'>'}
+$MethodFactory.$dict=$B.$MethodDict
+$B.$InstanceMethodDict={__class__:$B.$type,__name__:'instancemethod',__mro__:[_b_.object.$dict],$factory:$MethodFactory}})(__BRYTHON__)
+;(function($B){var _b_=$B.builtins
+$B.args=function($fname,argcount,slots,var_names,$args,$dobj,extra_pos_args,extra_kw_args){
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+if(nb_pos>0 && $args[nb_pos-1].$nat){has_kw_args=true
+nb_pos--
+var kw_args=$args[nb_pos].kw}
+if(extra_pos_args){slots[extra_pos_args]=[];
+slots[extra_pos_args].__class__=_b_.tuple.$dict}
+if(extra_kw_args){
+slots[extra_kw_args]={__class__:_b_.dict.$dict,$numeric_dict :{},$object_dict :{},$string_dict :{},$str_hash:{},length: 0}}
+if(nb_pos>argcount){
+if(extra_pos_args===null){
+msg=$fname+"() takes "+argcount+' positional argument'+
+(argcount> 1 ? '' : 's')+ ' but more were given'
+throw _b_.TypeError(msg)}else{
+for(var i=argcount;i<nb_pos;i++){slots[extra_pos_args].push($args[i])}
+nb_pos=argcount}}
+for(var i=0;i<nb_pos;i++){slots[var_names[i]]=$args[i]}
+if(has_kw_args){for(var key in kw_args){var value=kw_args[key],key=key.replace(/\$/g,'')
+if(slots[key]===undefined){
+if(extra_kw_args){
+slots[extra_kw_args].$string_dict[key]=value}else{throw _b_.TypeError($fname+"() got an unexpected keyword argument '"+key+"'")}}else if(slots[key]!==null){
+throw _b_.TypeError($fname+"() got multiple values for argument '"+key+"'")}else{
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+var missing=[]
+for(var attr in slots){if(slots[attr]===null){if($dobj[attr]!==undefined){slots[attr]=$dobj[attr]}
+else{missing.push("'"+attr+"'")}}}
+if(missing.length>0){if(missing.length==1){throw _b_.TypeError($fname+" missing 1 positional argument: "+missing[0])}else{var msg=$fname+" missing "+missing.length+" positional arguments: "
+msg +=missing.join(' and ')
+throw _b_.TypeError(msg)}}
+return slots}
+$B.get_class=function(obj){
+if(obj===null){return $B.$NoneDict}
+var klass=obj.__class__
+if(klass===undefined){switch(typeof obj){case 'number':
+if(obj % 1===0){
+obj.__class__=_b_.int.$dict
+return _b_.int.$dict}
+obj.__class__=_b_.float.$dict
+return _b_.float.$dict
+case 'string':
+obj.__class__=_b_.str.$dict
+return _b_.str.$dict
+case 'boolean':
+obj.__class__=$B.$BoolDict
+return $B.$BoolDict
+case 'function':
+obj.__class__=$B.$FunctionDict
+return $B.$FunctionDict
+case 'object':
+if(Array.isArray(obj)){if(Object.getPrototypeOf(obj)===Array.prototype){obj.__class__=_b_.list.$dict
+return _b_.list.$dict}}else if(obj.constructor===Number)return _b_.float.$dict
+break}}
+return klass}
+$B.$mkdict=function(glob,loc){var res={}
+for(var arg in glob)res[arg]=glob[arg]
+for(var arg in loc)res[arg]=loc[arg]
+return res}
+function clear(ns){
+delete $B.vars[ns],$B.bound[ns],$B.modules[ns],$B.imported[ns]}
+$B.$list_comp=function(items){
+var ix=$B.UUID()
+var py="x"+ix+"=[]\n",indent=0
+for(var i=1,len=items.length;i < len;i++){py +=' '.repeat(indent)
+var item=items[i]
+item=item.replace(/\s*$/,'').replace(/\s+/g,' ')
+py +=item+':\n'
+indent +=4}
+py +=' '.repeat(indent)
+py +='x'+ix+'.append('+items[0]+')\n'
+return[py,ix]}
+$B.$dict_comp=function(env){
+var $ix=$B.UUID()
+var $res='res'+$ix
+var $py=$res+"={}\n"
+var indent=0
+for(var $i=2,_len_$i=arguments.length;$i < _len_$i;$i++){$py+=' '.repeat(indent)
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+for(var i=0;i<env.length;i++){var sc_id='$locals_'+env[i][0].replace(/\./,'_')
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+var local_name=env[0][0]
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+var dictcomp_name='dc'+$ix
+var $root=$B.py2js($py,module_name,dictcomp_name,local_name,$B.line_info)
+$root.caller=$B.line_info
+var $js=$root.to_js()
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+var res=eval('$locals_'+dictcomp_name+'["'+$res+'"]')
+$B.clear_ns(dictcomp_name)
+return res}
+$B.$gen_expr=function(env){
+var $ix=$B.UUID()
+var $res='res'+$ix
+var $py=$res+"=[]\n"
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+var $root=$B.py2js($py,module_name,genexpr_name,local_name,$B.line_info)
+var $js=$root.to_js()
+eval($js)
+var $res1=eval('$locals_ge'+$ix)["res"+$ix]
+var $GenExprDict={__class__:$B.$type,__name__:'generator',toString:function(){return '(generator)'}}
+$GenExprDict.__mro__=[$GenExprDict,_b_.object.$dict]
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+$GenExprDict.__next__=function(self){self.$counter +=1
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+$GenExprDict.$factory={__class__:$B.$factory,$dict:$GenExprDict}
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+$res2.toString=function(){return 'ge object'}
+delete $B.modules[genexpr_name]
+$B.clear_ns(genexpr_name)
+return $res2}
+$B.$gen_expr1=function(module_name,parent_block_id,items,line_num){
+var $ix=$B.UUID()
+var py='def ge'+$ix+'():\n'
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+for(var i=1,len=items.length;i < len;i++){py +=' '.repeat(indent)
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+indent +=4}
+py+=' '.repeat(indent)
+py +='yield '+items[0]
+var genexpr_name='ge'+$ix
+var root=$B.py2js(py,module_name,genexpr_name,parent_block_id,line_num)
+var js=root.to_js()
+var lines=js.split('\n')
+var header='for(var i=0;i<$B.frames_stack.length;i++){\n'+
+'    var frame = $B.frames_stack[i];\n'+
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+js +='\nreturn $locals_'+genexpr_name+'["'+genexpr_name+'"]();\n'
+js='(function(){'+js+'})()\n'
+return js}
+$B.clear_ns=function(name){
+var keys=[],len=name.length
+for(var key in __BRYTHON__.modules){if(key.substr(0,len)==name && key!==name){keys.push(key)}}
+for(var i=0;i<keys.length;i++){delete __BRYTHON__.modules[keys[i]]
+delete __BRYTHON__.bound[keys[i]]
+delete __BRYTHON__.type[keys[i]]}}
+$B.$search=function(name,global_ns){
+var frame=$B.last($B.frames_stack)
+if(frame[1][name]!==undefined){return frame[1][name]}
+else if(frame[3][name]!==undefined){return frame[3][name]}
+else if(_b_[name]!==undefined){return _b_[name]}
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+else{console.log(name,'not found in',frame)
+throw _b_.UnboundLocalError("local variable '"+name+
+"' referenced before assignment")}}}
+$B.$global_search=function(name){
+var frame=$B.last($B.frames_stack)
+if(frame[3][name]!==undefined){return frame[3][name]}
+else{throw _b_.NameError(name)}}
+$B.$local_search=function(name){
+var frame=$B.last($B.frames_stack)
+if(frame[1][name]!==undefined){return frame[1][name]}
+else{throw _b_.UnboundLocalError("local variable '"+name+
+"' referenced before assignment")}}
+$B.$check_def=function(name,value){
+if(value!==undefined){return value}
+throw _b_.NameError(name)}
+$B.$check_def_local=function(name,value){
+if(value!==undefined){return value}
+throw _b_.UnboundLocalError("local variable '"+name+
+"' referenced before assignment")}
+$B.$check_def_free=function(name,value){
+if(value!==undefined){return value}
+var res
+for(var i=$B.frames_stack.length-1;i>=0;i--){var frame=$B.frames_stack[i]
+res=$B.frames_stack[i][1][name]
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+res=$B.frames_stack[i][3][name]
+if(res!==undefined){return res}}
+throw _b_.NameError("free variable '"+name+
+"' referenced before assignment in enclosing scope")}
+$B.$JS2Py=function(src){if(typeof src==='number'){if(src%1===0)return src
+return _b_.float(src)}
+if(src===null||src===undefined)return _b_.None
+var klass=$B.get_class(src)
+if(klass!==undefined){if(klass===_b_.list.$dict){for(var i=0,_len_i=src.length;i< _len_i;i++)src[i]=$B.$JS2Py(src[i])}else if(klass===$B.JSObject.$dict){src=src.js}else{return src}}
+if(typeof src=="object"){if($B.$isNode(src))return $B.DOMNode(src)
+if($B.$isEvent(src))return $B.$DOMEvent(src)
+if((Array.isArray(src)&&Object.getPrototypeOf(src)===Array.prototype)||
+$B.$isNodeList(src)){var res=[],pos=0
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+return $B.JSObject(src)}
+$B.list_key=function(obj,key){key=$B.$GetInt(key)
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+$B.list_slice_step=function(obj,start,stop,step){if(step===null||step==1){return $B.list_slice(obj,start,stop)}
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+parent_block_id=current_globals_id
+ex +='var $locals_'+current_globals_id+'=gobj;'
+eval(ex)}else{$B.bound[globals_id]={}
+var items=_b_.dict.$dict.items(_globals),item
+while(1){try{var item=next(items)
+eval('$locals_'+globals_id+'["'+item[0]+'"] = item[1]')
+$B.bound[globals_id][item[0]]=true}catch(err){break}}
+parent_block_id='__builtins__'}
+if(_locals===undefined){if(_globals!==undefined){eval('var $locals_'+locals_id+' = $locals_'+globals_id)}else{var lobj=current_frame[1],ex=''
+for(var attr in current_frame[1]){ex +='$locals_'+locals_id+'["'+attr+
+'"] = current_frame[1]["'+attr+'"];'}
+eval(ex)}}else{var items=_b_.dict.$dict.items(_locals),item
+while(1){try{var item=next(items)
+eval('$locals_'+locals_id+'["'+item[0]+'"] = item[1]')}catch(err){break}}}
+var root=$B.py2js(src,globals_id,locals_id,parent_block_id),leave_frame=true
+try{
+if(!is_exec){var try_node=root.children[root.children.length-2],instr=$B.last(try_node.children)
+var type=instr.C.tree[0].type
+if(!('expr'==type ||'list_or_tuple'==type ||'op'==type)){leave_frame=false
+throw _b_.SyntaxError("eval() argument must be an expression",'<string>',1,1,src)}else{
+var children=try_node.children
+root.children.splice(root.children.length-2,2)
+for(var i=0;i<children.length;i++){root.add(children[i])}}}
+var js=root.to_js()
+if($B.async_enabled)js=$B.execution_object.source_conversion(js)
+var res=eval(js)
+var gns=eval('$locals_'+globals_id)
+if(_locals!==undefined){var lns=eval('$locals_'+locals_id)
+var setitem=getattr(_locals,'__setitem__')
+for(var attr in lns){setitem(attr,lns[attr])}}else{for(var attr in lns){current_frame[1][attr]=lns[attr]}}
+if(_globals!==undefined){
+var setitem=getattr(_globals,'__setitem__')
+for(var attr in gns){setitem(attr,gns[attr])}}else{for(var attr in gns){current_frame[3][attr]=gns[attr]}}
+if(res===undefined)return _b_.None
+return res}catch(err){if(err.$py_error===undefined){throw $B.exception(err)}
+throw err}finally{delete __BRYTHON__.modules[globals_id]
+delete __BRYTHON__.modules[locals_id]
+$B.clear_ns(globals_id)
+$B.clear_ns(locals_id)
+if(!is_exec && leave_frame){
+$B.frames_stack.pop()}}}
+$eval.$is_func=true
+function exec(src,globals,locals){return $eval(src,globals,locals,'exec')||_b_.None}
+exec.$is_func=true
+var $FilterDict={__class__:$B.$type,__name__:'filter'}
+$FilterDict.__iter__=function(self){return self}
+$FilterDict.__repr__=$FilterDict.__str__=function(){return "<filter object>"},$FilterDict.__mro__=[$FilterDict,$ObjectDict]
+function filter(){if(arguments.length!=2){throw _b_.TypeError(
+"filter expected 2 arguments, got "+arguments.length)}
+var func=arguments[0],iterable=iter(arguments[1])
+if(func===_b_.None)func=bool
+var __next__=function(){while(true){var _item=next(iterable)
+if(func(_item)){return _item}}}
+return{
+__class__: $FilterDict,__next__: __next__}}
+function format(value,format_spec){if(hasattr(value,'__format__'))return getattr(value,'__format__')(format_spec)
+throw _b_.NotImplementedError("__format__ is not implemented for object '" + _b_.str(value)+ "'")}
+function attr_error(attr,cname){var msg="bad operand type for unary #: '"+cname+"'"
+switch(attr){case '__neg__':
+throw _b_.TypeError(msg.replace('#','-'))
+case '__pos__':
+throw _b_.TypeError(msg.replace('#','+'))
+case '__invert__':
+throw _b_.TypeError(msg.replace('#','~'))
+case '__call__':
+throw _b_.TypeError("'"+cname+"'"+' object is not callable')
+default:
+throw _b_.AttributeError("'"+cname+"' object has no attribute '"+attr+"'")}}
+function getattr(obj,attr,_default){var klass=obj.__class__
+if(klass===undefined){
+if(typeof obj=='string'){klass=_b_.str.$dict}
+else if(typeof obj=='number'){klass=obj % 1==0 ? _b_.int.$dict : _b_.float.$dict}
+else{klass=$B.get_class(obj)}}
+if(klass===undefined){
+if(obj[attr]!==undefined)return $B.$JS2Py(obj[attr])
+if(_default!==undefined)return _default
+throw _b_.AttributeError('object has no attribute '+attr)}
+switch(attr){case '__call__':
+if(typeof obj=='function'){if(obj.$blocking){console.log('calling blocking function '+obj.__name__)}
+return obj}else if(klass===$B.JSObject.$dict && typeof obj.js=='function'){return function(){var res=obj.js.apply(null,arguments)
+if(res===undefined){return None}
+return $B.JSObject(res)}}
+break
+case '__class__':
+return klass.$factory
+case '__dict__':
+return $B.obj_dict(obj)
+case '__doc__':
+for(var i=0;i<builtin_names.length;i++){if(obj===_b_[builtin_names[i]]){_get_builtins_doc()
+return $B.builtins_doc[builtin_names[i]]}}
+break
+case '__mro__':
+if(klass===$B.$factory){
+var res=[],pos=0
+for(var i=0;i<obj.$dict.__mro__.length;i++){res[pos++]=obj.$dict.__mro__[i].$factory}
+return res}
+break
+case '__subclasses__':
+if(klass===$B.$factory){var subclasses=obj.$dict.$subclasses ||[]
+return function(){return subclasses}}
+break}
+if(typeof obj=='function'){if(attr !==undefined && obj[attr]!==undefined){if(attr=='__module__'){
+return obj[attr]}}}
+if(klass.$native){if(klass[attr]===undefined){var object_attr=_b_.object.$dict[attr]
+if(object_attr!==undefined){klass[attr]=object_attr}
+else{if(_default===undefined){attr_error(attr,klass.__name__)}
+return _default}}
+if(klass.descriptors && klass.descriptors[attr]!==undefined){return klass[attr](obj)}
+if(typeof klass[attr]=='function'){
+if(attr=='__new__')return klass[attr].apply(null,arguments)
+var method=function(){var args=[obj],pos=1
+for(var i=0;i<arguments.length;i++){args[pos++]=arguments[i]}
+return klass[attr].apply(null,args)}
+method.__class__=$B.$MethodDict
+method.$infos={__class__: klass.$factory,__func__ : klass[attr],__name__ : attr,__self__ : obj}
+method.__str__=method.__repr__=function(){return '<built-in method '+attr+' of '+klass.__name__+' object>'}
+return method}
+return klass[attr]}
+var is_class=klass.is_class,mro,attr_func
+if(is_class){attr_func=$B.$type.__getattribute__
+if(obj.$dict===undefined){console.log('obj '+obj+' $dict undefined')}
+obj=obj.$dict}else{var mro=klass.__mro__
+if(mro===undefined){console.log('in getattr '+attr+' mro undefined for '+obj+' dir '+dir(obj)+' class '+obj.__class__)
+for(var _attr in obj){console.log('obj attr '+_attr+' : '+obj[_attr])}
+console.log('obj class '+dir(klass)+' str '+klass)}
+for(var i=0;i<mro.length;i++){attr_func=mro[i]['__getattribute__']
+if(attr_func!==undefined){break}}}
+if(typeof attr_func!=='function'){console.log(attr+' is not a function '+attr_func)}
+try{var res=attr_func(obj,attr)}
+catch(err){if(_default!==undefined)return _default
+throw err}
+if(res!==undefined){return res}
+if(_default !==undefined)return _default
+var cname=klass.__name__
+if(is_class)cname=obj.__name__
+attr_error(attr,cname)}
+function globals(){
+return $B.obj_dict($B.last($B.frames_stack)[3])}
+function hasattr(obj,attr){try{getattr(obj,attr);return true}
+catch(err){return false}}
+function hash(obj){if(arguments.length!=1){throw _b_.TypeError("hash() takes exactly one argument ("+
+arguments.length+" given)")}
+if(obj===undefined)console.log('hash:obj is undefined',obj)
+if(obj.__hashvalue__ !==undefined)return obj.__hashvalue__
+if(isinstance(obj,_b_.int))return obj.valueOf()
+if(isinstance(obj,bool))return _b_.int(obj)
+if(obj.__hash__ !==undefined){return obj.__hashvalue__=obj.__hash__()}
+var hashfunc=getattr(obj,'__hash__',_b_.None)
+if(hashfunc==_b_.None)return $B.$py_next_hash--
+if(hashfunc.$infos===undefined){return obj.__hashvalue__=hashfunc()}
+if(hashfunc.$infos.__func__===_b_.object.$dict.__hash__){if(getattr(obj,'__eq__').$infos.__func__!==_b_.object.$dict.__eq__){throw _b_.TypeError("unhashable type: '"+
+$B.get_class(obj).__name__+"'")}else{return $B.$py_next_hash--}}else{return obj.__hashvalue__=hashfunc()}}
+function _get_builtins_doc(){if($B.builtins_doc===undefined){
+var url=$B.brython_path
+if(url.charAt(url.length-1)=='/'){url=url.substr(0,url.length-1)}
+url +='/builtins_docstrings.js'
+var f=_b_.open(url)
+eval(f.$content)
+$B.builtins_doc=docs}}
+function help(obj){if(obj===undefined)obj='help'
+if(typeof obj=='string' && _b_[obj]!==undefined){_get_builtins_doc()
+var _doc=$B.builtins_doc[obj]
+if(_doc !==undefined && _doc !=''){_b_.print(_doc)
+return}}
+for(var i=0;i<builtin_names.length;i++){if(obj===_b_[builtin_names[i]]){_get_builtins_doc()
+_b_.print(_doc=$B.builtins_doc[builtin_names[i]])}}
+if(typeof obj=='string'){$B.$import("pydoc");
+var pydoc=$B.imported["pydoc"]
+getattr(getattr(pydoc,"help"),"__call__")(obj)
+return}
+try{return getattr(obj,'__doc__')}
+catch(err){console.log('help err '+err);return ''}}
+function hex(x){return $builtin_base_convert_helper(x,16)}
+function id(obj){if(isinstance(obj,[_b_.str,_b_.int,_b_.float])){return getattr(_b_.str(obj),'__hash__')()}else if(obj.$id!==undefined){return obj.$id}
+else{return obj.$id=$B.UUID()}}
+function __import__(mod_name,globals,locals,fromlist,level){
+var $=$B.args('__import__',5,{name:null,globals:null,locals:null,fromlist:null,level:null},['name','globals','locals','fromlist','level'],arguments,{globals:None,locals:None,fromlist:_b_.tuple(),level:0},null,null)
+return $B.$__import__($.name,$.globals,$.locals,$.fromlist);}
+function input(src){var stdin=($B.imported.sys && $B.imported.sys.stdin ||$B.stdin);
+if(stdin.__original__){return prompt(src);}
+var val=_b_.getattr(stdin,'readline')();
+val=val.split('\n')[0];
+if(stdin.len===stdin.pos){_b_.getattr(stdin,'close')();}
+return val;}
+function isinstance(obj,arg){if(obj===null)return arg===None
+if(obj===undefined)return false
+if(arg.constructor===Array){for(var i=0;i<arg.length;i++){if(isinstance(obj,arg[i]))return true}
+return false}
+if(arg===_b_.int &&(obj===True ||obj===False)){return True}
+var klass=obj.__class__
+if(klass==undefined){if(typeof obj=='string' && arg==_b_.str){return true}
+if(obj.contructor==Number && arg==_b_.float){return true}
+if(typeof obj=='number' && arg==_b_.int){return true}
+klass=$B.get_class(obj)}
+if(klass===undefined){return false }
+if(arg.$dict===undefined){return false}
+if(klass==$B.$factory){klass=obj.$dict.__class__}
+for(var i=0;i<klass.__mro__.length;i++){var kl=klass.__mro__[i]
+if(kl===arg.$dict){return true}
+else if(arg===_b_.str && 
+kl===$B.$StringSubclassFactory.$dict){return true}
+else if(arg===_b_.list && 
+kl===$B.$ListSubclassFactory.$dict){return true}}
+var hook=getattr(arg,'__instancecheck__',null)
+if(hook!==null){return hook(obj)}
+return false}
+function issubclass(klass,classinfo){if(arguments.length!==2){throw _b_.TypeError("issubclass expected 2 arguments, got "+arguments.length)}
+if(!klass.__class__ ||klass.__class__!==$B.$factory){throw _b_.TypeError("issubclass() arg 1 must be a class")}
+if(isinstance(classinfo,_b_.tuple)){for(var i=0;i<classinfo.length;i++){if(issubclass(klass,classinfo[i]))return true}
+return false}
+if(classinfo.__class__.is_class){if(klass.$dict.__mro__.indexOf(classinfo.$dict)>-1){return true}}
+var hook=getattr(classinfo,'__subclasscheck__',null)
+if(hook!==null){return hook(klass)}
+return false}
+var iterator_class=$B.make_class({name:'iterator',init:function(self,getitem,len){self.getitem=getitem
+self.len=len
+self.counter=-1}})
+iterator_class.$dict.__next__=function(self){self.counter++
+if(self.len!==null && self.counter==self.len){throw _b_.StopIteration('')}
+try{return self.getitem(self.counter)}
+catch(err){throw _b_.StopIteration('')}}
+function iter(obj){try{var _iter=getattr(obj,'__iter__')}
+catch(err){var gi=getattr(obj,'__getitem__',null),ln=getattr(obj,'__len__',null)
+if(gi!==null){if(ln!==null){var len=getattr(ln,'__call__')()
+return iterator_class(gi,len)}else{return iterator_class(gi,null)}}
+throw _b_.TypeError("'"+$B.get_class(obj).__name__+"' object is not iterable")}
+var res=_iter()
+try{getattr(res,'__next__')}
+catch(err){if(isinstance(err,_b_.AttributeError)){throw _b_.TypeError(
+"iter() returned non-iterator of type '"+
+$B.get_class(res).__name__+"'")}}
+return res}
+function len(obj){try{return getattr(obj,'__len__')()}
+catch(err){throw _b_.TypeError("object of type '"+$B.get_class(obj).__name__+
+"' has no len()")}}
+function locals(){
+var locals_obj=$B.last($B.frames_stack)[1]
+return $B.obj_dict(locals_obj)}
+var $MapDict={__class__:$B.$type,__name__:'map'}
+$MapDict.__mro__=[$MapDict,$ObjectDict]
+$MapDict.__iter__=function(self){return self}
+function map(){var func=getattr(arguments[0],'__call__')
+var iter_args=[],pos=0
+for(var i=1;i<arguments.length;i++){iter_args[pos++]=iter(arguments[i])}
+var __next__=function(){var args=[],pos=0
+for(var i=0;i<iter_args.length;i++){args[pos++]=next(iter_args[i])}
+return func.apply(null,args)}
+var obj={__class__:$MapDict,__repr__:function(){return "<map object>"},__str__:function(){return "<map object>"},__next__: __next__}
+return obj}
+function $extreme(args,op){
+var $op_name='min'
+if(op==='__gt__')$op_name="max"
+if(args.length==0){throw _b_.TypeError($op_name+" expected 1 arguments, got 0")}
+var last_arg=args[args.length-1]
+var nb_args=args.length
+var has_kw_args=false
+var has_default=false
+var func=false
+if(last_arg.$nat=='kw'){nb_args--
+last_arg=last_arg.kw
+for(var attr in last_arg){switch(attr){case 'key':
+var func=last_arg[attr]
+has_key=true
+break
+case '$$default': 
+var default_value=last_arg[attr]
+has_default=true
+break
+default:
+throw _b_.TypeError("'"+attr+"' is an invalid keyword argument for this function")
+break}}}
+if(!func){func=function(x){return x}}
+if(nb_args==0){throw _b_.TypeError($op_name+" expected 1 arguments, got 0")}else if(nb_args==1){
+var $iter=iter(args[0]),res=null
+while(true){try{var x=next($iter)
+if(res===null ||bool(getattr(func(x),op)(func(res)))){res=x}}catch(err){if(err.__name__=="StopIteration"){if(res===null){if(has_default){return default_value}
+else{throw _b_.ValueError($op_name+"() arg is an empty sequence")}}else{return res}}
+throw err}}}else{if(has_default){throw _b_.TypeError("Cannot specify a default for "+$op_name+"() with multiple positional arguments")}
+var res=null
+for(var i=0;i<nb_args;i++){var x=args[i]
+if(res===null ||bool(getattr(func(x),op)(func(res)))){res=x}}
+return res}}
+function max(){var args=[],pos=0
+for(var i=0;i<arguments.length;i++){args[pos++]=arguments[i]}
+return $extreme(args,'__gt__')}
+function memoryview(obj){throw NotImplementedError('memoryview is not implemented')}
+function min(){var args=[],pos=0
+for(var i=0;i<arguments.length;i++){args[pos++]=arguments[i]}
+return $extreme(args,'__lt__')}
+function next(obj){var ga=getattr(obj,'__next__')
+if(ga!==undefined)return ga()
+throw _b_.TypeError("'"+$B.get_class(obj).__name__+
+"' object is not an iterator")}
+function _NotImplemented(){return{__class__:_NotImplemented.$dict}}
+_NotImplemented.__class__=$B.$factory
+_NotImplemented.$dict={$factory: _NotImplemented,__class__: $B.$type,__name__: 'NotImplementedType'}
+_NotImplemented.$dict.__mro__=[_NotImplemented.$dict,$ObjectDict]
+var NotImplemented={__class__ : _NotImplemented.$dict,__str__: function(){return 'NotImplemented'}}
+function $not(obj){return !bool(obj)}
+function oct(x){return $builtin_base_convert_helper(x,8)}
+function ord(c){
+if(typeof c=='string'){if(c.length==1)return c.charCodeAt(0)
+throw _b_.TypeError('ord() expected a character, but string of length ' + 
+c.length + ' found')}
+switch($B.get_class(c)){case _b_.str.$dict:
+if(c.length==1)return c.charCodeAt(0)
+throw _b_.TypeError('ord() expected a character, but string of length ' + 
+c.length + ' found')
+case _b_.bytes.$dict:
+case _b_.bytearray.$dict:
+if(c.source.length==1)return c.source[0]
+throw _b_.TypeError('ord() expected a character, but string of length ' + 
+c.source.length + ' found')
+default:
+throw _b_.TypeError('ord() expected a character, but ' + 
+$B.get_class(c).__name__ + ' was found')}}
+function pow(){var $ns=$B.args('pow',3,{x:null,y:null,z:null},['x','y','z'],arguments,{z:null},null,null)
+var x=$ns['x'],y=$ns['y'],z=$ns['z']
+var res=getattr(x,'__pow__')(y)
+if(z===null){return res}
+else{if(!isinstance(x,_b_.int)||!isinstance(y,_b_.int)){throw _b_.TypeError("pow() 3rd argument not allowed unless "+
+"all arguments are integers")}
+return getattr(res,'__mod__')(z)}}
+function $print(){var $ns=$B.args('print',0,{},[],arguments,{},'args','kw')
+var ks=$ns['kw'].$string_dict
+var end=ks['end']===undefined ? '\n' : ks['end'],sep=ks['sep']===undefined ? ' ' : ks['sep'],file=ks['file']===undefined ? $B.stdout : ks['file'],args=$ns['args']
+getattr(file,'write')(args.map(_b_.str).join(sep)+end)
+return None}
+$print.__name__='print'
+$print.is_func=true
+var $PropertyDict={__class__ : $B.$type,__name__ : 'property',}
+$PropertyDict.__mro__=[$PropertyDict,$ObjectDict]
+$B.$PropertyDict=$PropertyDict
+function property(fget,fset,fdel,doc){var p={__class__ : $PropertyDict,__doc__ : doc ||"",$type:fget.$type,fget:fget,fset:fset,fdel:fdel,toString:function(){return '<property>'}}
+p.__get__=function(self,obj,objtype){if(obj===undefined)return self
+if(self.fget===undefined)throw _b_.AttributeError("unreadable attribute")
+return getattr(self.fget,'__call__')(obj)}
+if(fset!==undefined){p.__set__=function(self,obj,value){if(self.fset===undefined)throw _b_.AttributeError("can't set attribute")
+getattr(self.fset,'__call__')(obj,value)}}
+p.__delete__=fdel;
+p.getter=function(fget){return property(fget,p.fset,p.fdel,p.__doc__)}
+p.setter=function(fset){return property(p.fget,fset,p.fdel,p.__doc__)}
+p.deleter=function(fdel){return property(p.fget,p.fset,fdel,p.__doc__)}
+return p}
+property.__class__=$B.$factory
+property.$dict=$PropertyDict
+$PropertyDict.$factory=property
+function repr(obj){if(obj.__class__===$B.$factory){
+var func=$B.$type.__getattribute__(obj.$dict.__class__,'__repr__')
+return func(obj)}
+var func=getattr(obj,'__repr__')
+if(func!==undefined){return func()}
+throw _b_.AttributeError("object has no attribute __repr__")}
+var $ReversedDict={__class__:$B.$type,__name__:'reversed'}
+$ReversedDict.__mro__=[$ReversedDict,$ObjectDict]
+$ReversedDict.__iter__=function(self){return self}
+$ReversedDict.__next__=function(self){self.$counter--
+if(self.$counter<0)throw _b_.StopIteration('')
+return self.getter(self.$counter)}
+function reversed(seq){
+try{return getattr(seq,'__reversed__')()}
+catch(err){if(err.__name__!='AttributeError'){throw err}}
+try{var res={__class__:$ReversedDict,$counter : getattr(seq,'__len__')(),getter:getattr(seq,'__getitem__')}
+return res}catch(err){throw _b_.TypeError("argument to reversed() must be a sequence")}}
+reversed.__class__=$B.$factory
+reversed.$dict=$ReversedDict
+$ReversedDict.$factory=reversed
+function round(arg,n){if(!isinstance(arg,[_b_.int,_b_.float])){throw _b_.TypeError("type "+arg.__class__+" doesn't define __round__ method")}
+if(isinstance(arg,_b_.float)&&(arg.value===Infinity ||arg.value===-Infinity)){throw _b_.OverflowError("cannot convert float infinity to integer")}
+if(n===undefined)return _b_.int(Math.round(arg))
+if(!isinstance(n,_b_.int)){throw _b_.TypeError(
+"'"+n.__class__+"' object cannot be interpreted as an integer")}
+var mult=Math.pow(10,n)
+return _b_.int.$dict.__truediv__(Number(Math.round(arg.valueOf()*mult)),mult)}
+function setattr(obj,attr,value){if(!(typeof attr=='string')){throw _b_.TypeError("setattr(): attribute name must be string")}
+switch(attr){case 'alert':
+case 'case':
+case 'catch':
+case 'constructor':
+case 'Date':
+case 'delete':
+case 'default':
+case 'document':
+case 'Error':
+case 'history':
+case 'function':
+case 'location':
+case 'Math':
+case 'new':
+case 'Number':
+case 'RegExp':
+case 'this':
+case 'throw':
+case 'var':
+case 'super':
+case 'window':
+attr='$$'+attr
+break
+case '__class__':
+obj.__class__=value.$dict;return None
+break}
+if(obj.__class__===$B.$factory){
+if(obj.$dict.$methods && typeof value=='function' 
+&& value.__class__!==$B.$factory){
+obj.$dict.$methods[attr]=$B.make_method(attr,obj.$dict,value,value)
+return None}else{obj.$dict[attr]=value;return None}}
+var res=obj[attr],klass=obj.__class__ ||$B.get_class(obj)
+if(res===undefined && klass){var mro=klass.__mro__,_len=mro.length
+for(var i=0;i<_len;i++){res=mro[i][attr]
+if(res!==undefined)break}}
+if(res!==undefined){
+if(res.__set__!==undefined){res.__set__(res,obj,value);return None}
+var __set__=getattr(res,'__set__',null)
+if(__set__ &&(typeof __set__=='function')){__set__.apply(res,[obj,value]);return None}}
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+for(var $key in $B.$comps){
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+_b_.NotImplementedError("Error! negative step indices not implemented yet")}
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+_b_.range=range
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+;(function($B){var _b_=$B.builtins
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+self.source.splice(start,0,$temp[i])}}else{throw _b_.TypeError("can only assign an iterable")}}else{
+throw _b_.TypeError('list indices must be integer, not '+$B.get_class(arg).__name__)}}
+$BytearrayDict.append=function(self,b){if(arguments.length!=2){throw _b_.TypeError(
+"append takes exactly one argument ("+(arguments.length-1)+" given)")}
+if(!isinstance(b,_b_.int))throw _b_.TypeError("an integer is required")
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+"insert takes exactly 2 arguments ("+(arguments.length-1)+" given)")}
+if(!isinstance(b,_b_.int))throw _b_.TypeError("an integer is required")
+if(b>255)throw ValueError("byte must be in range(0, 256)")
+_b_.list.$dict.insert(self.source,pos,b)}
+function bytearray(source,encoding,errors){var _bytes=bytes(source,encoding,errors)
+var obj={__class__:$BytearrayDict}
+$BytearrayDict.__init__(obj,source,encoding,errors)
+return obj}
+bytearray.__class__=$B.$factory
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+self.source=self.source.concat(other.source)
+return self}
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+var hash=1;
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+$BytesDict.__init__=function(self,source,encoding,errors){var int_list=[],pos=0
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+int_list=_b_.list(source)}}
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+$BytesDict.__lt__=function(self,other){return _b_.list.$dict.__lt__(self.source,other.source)}
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+$BytesDict.__mul__=function(){var $=$B.args('__mul__',2,{self:null,other:null},['self','other'],arguments,{},null,null),other=$B.PyNumber_Index($.other),res=bytes()
+for(var i=0;i<other;i++){res.source=res.source.concat($.self.source)}
+return res}
+$BytesDict.__ne__=function(self,other){return !$BytesDict.__eq__(self,other)}
+$BytesDict.__repr__=$BytesDict.__str__=function(self){var res="b'"
+for(var i=0,_len_i=self.source.length;i < _len_i;i++){var s=self.source[i]
+if(s<32 ||s>=128){var hx=s.toString(16)
+hx=(hx.length==1 ? '0' : '')+ hx
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+$BytesDict.decode=function(self,encoding,errors){if(encoding===undefined)encoding='utf-8'
+if(errors===undefined)errors='strict'
+switch(errors){case 'strict':
+case 'ignore':
+case 'replace':
+case 'surrogateescape':
+case 'xmlcharrefreplace':
+case 'backslashreplace':
+return decode(self.source,encoding,errors)
+default:}}
+$BytesDict.join=function(){var $ns=$B.args('join',2,{self:null,iterable:null},['self','iterable'],arguments,{}),self=$ns['self'],iterable=$ns['iterable']
+var next_func=_b_.getattr(_b_.iter(iterable),'__next__'),res=bytes(),empty=true
+while(true){try{var item=next_func()
+if(empty){empty=false}
+else{res=$BytesDict.__add__(res,self)}
+res=$BytesDict.__add__(res,item)}catch(err){if(isinstance(err,_b_.StopIteration)){break}
+throw err}}
+return res}
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+for(var i=0;i < 256;i++)_t[i]=i
+for(var i=0,_len_i=from.source.length;i < _len_i;i++){var _ndx=from.source[i]
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+$BytesDict.split=function(){var $=$B.args('split',2,{self:null,sep:null},['self','sep'],arguments,{},null,null),res=[],start=0,stop=0
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+start=stop+len
+stop=start}else{stop++}}
+if(match ||(stop>start)){res.push(bytes(src.slice(start,stop)))}
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+function _strip(self,cars,lr){if(cars===undefined){cars=[],pos=0
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+if(lr=='l'){for(var i=0,_len_i=self.source.length;i < _len_i;i++){if(cars.indexOf(self.source[i])==-1)break}
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+$BytesDict.lstrip=function(self,cars){return _strip(self,cars,'l')}
+$BytesDict.rstrip=function(self,cars){return _strip(self,cars,'r')}
+$BytesDict.startswith=function(){var $=$B.args('startswith',2,{self: null,start: null},['self','start'],arguments,{},null,null)
+if(_b_.isinstance($.start,bytes)){var res=true
+for(var i=0;i<$.start.source.length && res;i++){res=$.self.source[i]==$.start.source[i]}
+return res}else if(_b_.isinstance($.start,_b_.tuple)){var items=[]
+for(var i=0;i<$.start.length;i++){if(_b_.isinstance($.start[i],bytes)){items=items.concat($.start[i].source)}else{throw _b_.TypeError("startswith first arg must be bytes or "+
+"a tuple of bytes, not "+$B.get_class($.start).__name__)}}
+var start=bytes(items)
+return $BytesDict.startswith($.self,start)}else{throw _b_.TypeError("startswith first arg must be bytes or a tuple of bytes, not "+
+$B.get_class($.start).__name__)}}
+$BytesDict.strip=function(self,cars){var res=$BytesDict.lstrip(self,cars)
+return $BytesDict.rstrip(res,cars)}
+$BytesDict.translate=function(self,table,_delete){if(_delete===undefined){_delete=[]}
+else if(isinstance(_delete,bytes)){_delete=_delete.source}
+else{throw _b_.TypeError("Type "+$B.get_class(_delete).__name+" doesn't support the buffer API")}
+var res=[],pos=0
+if(isinstance(table,bytes)&& table.source.length==256){for(var i=0,_len_i=self.source.length;i < _len_i;i++){if(_delete.indexOf(self.source[i])>-1)continue
+res[pos++]=table.source[self.source[i]]}}
+return bytes(res)}
+$BytesDict.upper=function(self){var _res=[],pos=0
+for(var i=0,_len_i=self.source.length;i < _len_i;i++)_res[pos++]=self.source[i].toUpperCase()
+return bytes(_res)}
+function $UnicodeEncodeError(encoding,code_point,position){throw _b_.UnicodeEncodeError("'"+encoding+
+"' codec can't encode character "+_b_.hex(code_point)+
+" in position "+position)}
+function $UnicodeDecodeError(encoding,position){throw _b_.UnicodeDecodeError("'"+encoding+
+"' codec can't decode bytes in position "+position)}
+function _hex(int){return int.toString(16)}
+function _int(hex){return parseInt(hex,16)}
+function normalise(encoding){var enc=encoding.toLowerCase()
+if(enc.substr(0,7)=='windows'){enc='cp'+enc.substr(7)}
+enc=enc.replace('-','')
+enc=enc.replace('-','_')
+return enc}
+function load_decoder(enc){
+if(to_unicode[enc]===undefined){load_encoder(enc)
+to_unicode[enc]={}
+for(var attr in from_unicode[enc]){to_unicode[enc][from_unicode[enc][attr]]=attr}}}
+function load_encoder(enc){
+if(from_unicode[enc]===undefined){var mod=_b_.__import__('encodings.'+enc),table=mod[enc].decoding_table
+from_unicode[enc]={}
+for(var i=0;i<table.length;i++){from_unicode[enc][table.charCodeAt(i)]=i}}}
+function decode(b,encoding,errors){var s='',enc=normalise(encoding)
+switch(enc){case 'utf_8':
+case 'utf-8':
+case 'utf8':
+case 'U8':
+case 'UTF':
+var i=0,cp
+var _int_800=_int('800'),_int_c2=_int('c2'),_int_1000=_int('1000')
+var _int_e0=_int('e0'),_int_e1=_int('e1'),_int_e3=_int('e3')
+var _int_a0=_int('a0'),_int_80=_int('80'),_int_2000=_int('2000')
+while(i<b.length){if(b[i]<=127){s +=String.fromCharCode(b[i])
+i +=1}else if(b[i]<_int_e0){if(i<b.length-1){cp=b[i+1]+ 64*(b[i]-_int_c2)
+s +=String.fromCharCode(cp)
+i +=2}else{$UnicodeDecodeError(encoding,i)}}else if(b[i]==_int_e0){if(i<b.length-2){var zone=b[i+1]-_int_a0
+cp=b[i+2]-_int_80+_int_800+64*zone
+s +=String.fromCharCode(cp)
+i +=3}else{$UnicodeDecodeError(encoding,i)}}else if(b[i]<_int_e3){if(i<b.length-2){var zone=b[i+1]-_int_80
+cp=b[i+2]-_int_80+_int_1000+64*zone
+s +=String.fromCharCode(cp)
+i +=3}else{$UnicodeDecodeError(encoding,i)}}else{if(i<b.length-2){var zone1=b[i]-_int_e1-1
+var zone=b[i+1]-_int_80+64*zone1
+cp=b[i+2]-_int_80+_int_2000+64*zone
+s +=String.fromCharCode(cp)
+i +=3}else{if(errors=='surrogateescape'){s+='\\udc' + _hex(b[i])
+i+=1}else{
+$UnicodeDecodeError(encoding,i)}}}}
+break;
+case 'latin_1':
+case 'windows1252':
+case 'iso-8859-1':
+case 'iso8859-1':
+case '8859':
+case 'cp819':
+case 'latin':
+case 'latin1':
+case 'L1':
+for(var i=0,_len_i=b.length;i < _len_i;i++)s +=String.fromCharCode(b[i])
+break;
+case 'ascii':
+for(var i=0,_len_i=b.length;i < _len_i;i++){var cp=b[i]
+if(cp<=127){s +=String.fromCharCode(cp)}
+else{var msg="'ascii' codec can't decode byte 0x"+cp.toString(16)
+msg +=" in position "+i+": ordinal not in range(128)"
+throw _b_.UnicodeDecodeError(msg)}}
+break;
+default:
+try{load_decoder(enc)}
+catch(err){throw _b_.LookupError("unknown encoding: "+ enc)}
+for(var i=0,_len_i=b.length;i < _len_i;i++){var u=to_unicode[enc][b[i]]
+if(u!==undefined){s+=String.fromCharCode(u)}
+else{s +=String.fromCharCode(b[i])}}
+break;
+throw _b_.LookupError("unknown encoding: "+encoding)}
+return s}
+function encode(s,encoding){var t=[],pos=0,enc=normalise(encoding)
+switch(enc){case 'utf-8':
+case 'utf8':
+var _int_800=_int('800'),_int_c2=_int('c2'),_int_1000=_int('1000')
+var _int_e0=_int('e0'),_int_e1=_int('e1'),_int_a0=_int('a0'),_int_80=_int('80')
+var _int_2000=_int('2000'),_int_D000=_int('D000')
+for(var i=0,_len_i=s.length;i < _len_i;i++){var cp=s.charCodeAt(i)
+if(cp<=127){t[pos++]=cp}else if(cp<_int_800){var zone=Math.floor((cp-128)/64)
+t[pos++]=_int_c2+zone
+t[pos++]=cp -64*zone}else if(cp<_int_1000){var zone=Math.floor((cp-_int_800)/64)
+t[pos++]=_int_e0
+t[pos++]=_int_a0+zone
+t[pos++]=_int_80 + cp - _int_800 - 64 * zone}else if(cp<_int_2000){var zone=Math.floor((cp-_int_1000)/64)
+t[pos++]=_int_e1+Math.floor((cp-_int_1000)/_int_1000)
+t[pos++]=_int_80+zone
+t[pos++]=_int_80 + cp - _int_1000 -64*zone}else if(cp<_int_D000){var zone=Math.floor((cp-_int_2000)/64)
+var zone1=Math.floor((cp-_int_2000)/_int_1000)
+t[pos++]=_int_e1+Math.floor((cp-_int_1000)/_int_1000)
+t[pos++]=_int_80+zone-zone1*64
+t[pos++]=_int_80 + cp - _int_2000 - 64 * zone}}
+break;
+case 'latin1': 
+case 'iso8859_1': 
+case 'windows1252': 
+for(var i=0,_len_i=s.length;i < _len_i;i++){var cp=s.charCodeAt(i)
+if(cp<=255){t[pos++]=cp}
+else{$UnicodeEncodeError(encoding,i)}}
+break;
+case 'ascii':
+for(var i=0,_len_i=s.length;i < _len_i;i++){var cp=s.charCodeAt(i)
+if(cp<=127){t[pos++]=cp}
+else{$UnicodeEncodeError(encoding,i)}}
+break;
+default:
+try{load_encoder(enc)}
+catch(err){throw _b_.LookupError("unknown encoding: "+ enc)}
+for(var i=0,_len_i=s.length;i < _len_i;i++){var cp=s.charCodeAt(i)
+if(from_unicode[enc][cp]===undefined){$UnicodeEncodeError(encoding,cp,i)}
+t[pos++]=from_unicode[enc][cp]}
+break}
+return t}
+function bytes(source,encoding,errors){
+var obj={__class__:$BytesDict}
+$BytesDict.__init__(obj,source,encoding,errors)
+return obj}
+bytes.__class__=$B.$factory
+bytes.$dict=$BytesDict
+$BytesDict.$factory=bytes
+bytes.__code__={}
+bytes.__code__.co_argcount=1
+bytes.__code__.co_consts=[]
+bytes.__code__.co_varnames=['i']
+for(var $attr in $BytesDict){if($BytearrayDict[$attr]===undefined){$BytearrayDict[$attr]=(function(attr){return function(){return $BytesDict[attr].apply(null,arguments)}})($attr)}}
+$B.set_func_names($BytesDict)
+$B.set_func_names($BytearrayDict)
+_b_.bytes=bytes
+_b_.bytearray=bytearray})(__BRYTHON__)
+;(function($B){eval($B.InjectBuiltins())
+var $ObjectDict=_b_.object.$dict
+var $LocationDict={__class__:$B.$type,__name__:'Location'}
+$LocationDict.__mro__=[$LocationDict,$ObjectDict]
+function $Location(){
+var obj={}
+for(var x in window.location){if(typeof window.location[x]==='function'){obj[x]=(function(f){return function(){return f.apply(window.location,arguments)}})(window.location[x])}else{obj[x]=window.location[x]}}
+if(obj['replace']===undefined){
+obj['replace']=function(url){window.location=url}}
+obj.__class__=$LocationDict
+obj.toString=function(){return window.location.toString()}
+obj.__repr__=obj.__str__=obj.toString
+return obj}
+$LocationDict.$factory=$Location
+$Location.$dict=$LocationDict
+var $JSConstructorDict={__class__:$B.$type,__name__:'JSConstructor'}
+$JSConstructorDict.__call__=function(self){
+var args=[null]
+for(var i=1,_len_i=arguments.length;i < _len_i;i++){args.push(pyobj2jsobj(arguments[i]))}
+var factory=self.func.bind.apply(self.func,args)
+var res=new factory()
+return $B.$JS2Py(res)}
+$JSConstructorDict.__mro__=[$JSConstructorDict,$ObjectDict]
+function JSConstructor(obj){return{
+__class__:$JSConstructorDict,func:obj.js_func}}
+JSConstructor.__class__=$B.$factory
+JSConstructor.$dict=$JSConstructorDict
+$JSConstructorDict.$factory=JSConstructor
+var jsobj2pyobj=$B.jsobj2pyobj=function(jsobj){switch(jsobj){case true:
+case false:
+return jsobj}
+if(Array.isArray(jsobj))return _b_.list(jsobj)
+if(typeof jsobj==='number'){if(jsobj.toString().indexOf('.')==-1)return _b_.int(jsobj)
+return _b_.float(jsobj)}
+return $B.JSObject(jsobj)}
+var pyobj2jsobj=$B.pyobj2jsobj=function(pyobj){
+if(pyobj===true ||pyobj===false)return pyobj
+if(pyobj===_b_.None)return null
+var klass=$B.get_class(pyobj)
+if(klass===undefined){
+return pyobj;}
+if(klass===$JSObjectDict ||klass===$JSConstructorDict){
+if(pyobj.js_func!==undefined){return pyobj.js_func}
+return pyobj.js}else if(klass.__mro__.indexOf($B.DOMNodeDict)>-1){
+return pyobj.elt}else if([_b_.list.$dict,_b_.tuple.$dict].indexOf(klass)>-1){
+var res=[]
+for(var i=0,_len_i=pyobj.length;i < _len_i;i++){res.push(pyobj2jsobj(pyobj[i]))}
+return res}else if(klass===_b_.dict.$dict){
+var jsobj={}
+var items=_b_.list(_b_.dict.$dict.items(pyobj))
+for(var j=0,_len_j=items.length;j < _len_j;j++){if(typeof items[j][1]=='function'){
+items[j][1].bind(jsobj)}
+jsobj[items[j][0]]=pyobj2jsobj(items[j][1])}
+return jsobj}else if(klass===$B.builtins.float.$dict){
+return pyobj.valueOf()}else if(klass===$B.$FunctionDict){
+return function(){try{var args=[]
+for(var i=0;i<arguments.length;i++){if(arguments[i]===undefined){args.push(_b_.None)}
+else{args.push(jsobj2pyobj(arguments[i]))}}
+return pyobj.apply(this,args)}catch(err){console.log(err)
+console.log(_b_.getattr(err,'info'))
+console.log(err.__name__+':',err.args[0])
+throw err}}}else{
+return pyobj}}
+var $JSObjectDict={__class__:$B.$type,__name__:'JSObject',toString:function(){return '(JSObject)'}}
+$JSObjectDict.__bool__=function(self){return(new Boolean(self.js)).valueOf()}
+$JSObjectDict.__delattr__=function(self,attr){_b_.getattr(self,attr)
+delete self.js[attr]
+return _b_.None}
+$JSObjectDict.__dir__=function(self){return Object.keys(self.js)}
+$JSObjectDict.__getattribute__=function(self,attr){if(attr.substr(0,2)=='$$')attr=attr.substr(2)
+if(self.js===null)return $ObjectDict.__getattribute__(None,attr)
+if(attr==='__class__')return $JSObjectDict
+if(self.__class__===$JSObjectDict && attr=="$bind" && 
+self.js[attr]===undefined &&
+self.js['addEventListener']!==undefined){attr='addEventListener'}
+var js_attr=self.js[attr]
+if(self.js_func && self.js_func[attr]!==undefined){js_attr=self.js_func[attr]}
+if(js_attr !==undefined){if(typeof js_attr=='function'){
+var res=function(){var args=[]
+for(var i=0,_len_i=arguments.length;i < _len_i;i++){if(arguments[i].$nat!=undefined){
+throw TypeError("A Javascript function can't "+
+"take keyword arguments")}else{args.push(pyobj2jsobj(arguments[i]))}}
+if(attr==='replace' && self.js===location){location.replace(args[0])
+return}
+var new_this=self.js;
+if(self.js_func){
+new_this=self.js_func;}
+if(this !==null && this !==undefined && this !==window){new_this=this}
+var result=js_attr.apply(new_this,args)
+if(result===undefined){result=this}
+return $B.$JS2Py(result)}
+res.__repr__=function(){return '<function '+attr+'>'}
+res.__str__=function(){return '<function '+attr+'>'}
+res.prototype=js_attr.prototype
+return{__class__:$JSObjectDict,js:res,js_func:js_attr}}else{if(Array.isArray(self.js[attr])){return self.js[attr]}
+return $B.$JS2Py(self.js[attr])}}else if(self.js===window && attr==='$$location'){
+return $Location()}
+var res
+var mro=self.__class__.__mro__
+for(var i=0,_len_i=mro.length;i < _len_i;i++){var v=mro[i][attr]
+if(v!==undefined){res=v
+break}}
+if(res!==undefined){if(typeof res==='function'){
+return function(){var args=[self]
+for(var i=0,_len_i=arguments.length;i < _len_i;i++){arg=arguments[i]
+if(arg &&(arg.__class__===$JSObjectDict ||arg.__class__===$JSConstructorDict)){args.push(arg.js)}else{args.push(arg)}}
+return res.apply(self,args)}}
+return $B.$JS2Py(res)}else{
+throw _b_.AttributeError("no attribute "+attr+' for '+self.js)}}
+$JSObjectDict.__getitem__=function(self,rank){if(typeof self.js.length=='number' &&
+typeof self.js.item=='function'){var rank_to_int=_b_.int(rank)
+if(rank_to_int<0){rank_to_int+=self.js.length}
+var res=self.js.item(rank_to_int)
+if(res===undefined){throw _b_.KeyError(rank)}
+return res}
+try{return getattr(self.js,'__getitem__')(rank)}
+catch(err){if(self.js[rank]!==undefined){return JSObject(self.js[rank])}
+throw _b_.KeyError(rank)}}
+var $JSObject_iterator=$B.$iterator_class('JS object iterator')
+$JSObjectDict.__iter__=function(self){var items=[]
+if(window.Symbol && self.js[Symbol.iterator]!==undefined){
+if(self.js.length!==undefined && self.js.item!==undefined){for(var i=0;i<self.js.length ;i++){items.push(self.js[i])}}else{for(var item in self.js){if(self.js.hasOwnProperty(item )){items.push(jsobj2pyobj(item))}}}
+return $B.$iterator(items,$JSObject_iterator)}else if(self.js.length!==undefined && self.js.item !==undefined){
+for(var i=0;i<self.js.length ;i++){items.push(self.js[i])}
+return $B.$iterator(items,$JSObject_iterator)}
+var _dict=$JSObjectDict.to_dict(self)
+return _b_.dict.$dict.__iter__(_dict)}
+$JSObjectDict.__len__=function(self){if(typeof self.js.length=='number'){return self.js.length}
+try{return getattr(self.js,'__len__')()}
+catch(err){throw _b_.AttributeError(self.js+' has no attribute __len__')}}
+$JSObjectDict.__mro__=[$JSObjectDict,$ObjectDict]
+$JSObjectDict.__repr__=function(self){if(self.js instanceof Date){return self.js.toString()}
+return "<JSObject wraps "+self.js+">"}
+$JSObjectDict.__setattr__=function(self,attr,value){if(isinstance(value,JSObject)){self.js[attr]=value.js}
+else{self.js[attr]=value
+if(typeof value=='function'){self.js[attr]=function(){var args=[]
+for(var i=0,len=arguments.length;i<len;i++){args.push($B.$JS2Py(arguments[i]))}
+try{return value.apply(null,args)}
+catch(err){err=$B.exception(err)
+var info=_b_.getattr(err,'info')
+err.toString=function(){return info+'\n'+err.__class__.__name__+
+': '+_b_.repr(err.args[0])}
+console.log(err+'')
+throw err}}}}}
+$JSObjectDict.__setitem__=$JSObjectDict.__setattr__
+$JSObjectDict.__str__=$JSObjectDict.__repr__
+var no_dict={'string':true,'function':true,'number':true,'boolean':true}
+$JSObjectDict.bind=function(self,evt,func){var f=function(){try{func.apply(null,arguments)}catch(err){throw $B.exception(err)}}
+self.js.addEventListener(evt,func)
+return _b_.None}
+$JSObjectDict.to_dict=function(self){
+var res=_b_.dict()
+for(var key in self.js){var value=self.js[key]
+if(typeof value=='object' && !Array.isArray(value)){_b_.dict.$dict.__setitem__(res,key,$JSObjectDict.to_dict(JSObject(value)))}else{_b_.dict.$dict.__setitem__(res,key,value)}}
+return res}
+function JSObject(obj){if(obj===null){return _b_.None}
+if(typeof obj=='function'){return{__class__:$JSObjectDict,js:obj,js_func:obj}}
+var klass=$B.get_class(obj)
+if(klass===_b_.float.$dict)return _b_.float(obj)
+if(klass!==undefined)return obj
+return{__class__:$JSObjectDict,js:obj}}
+JSObject.__class__=$B.$factory
+JSObject.$dict=$JSObjectDict
+$JSObjectDict.$factory=JSObject
+$B.JSObject=JSObject
+$B.JSConstructor=JSConstructor})(__BRYTHON__)
+;(function($B){$B.stdlib={}
+var pylist=['VFS_import','__future__','_abcoll','_codecs','_collections','_csv','_dummy_thread','_functools','_imp','_io','_markupbase','_random','_socket','_sre','_string','_strptime','_struct','_sysconfigdata','_testcapi','_thread','_threading_local','_warnings','_weakref','_weakrefset','abc','antigravity','argparse','atexit','base64','bdb','binascii','bisect','calendar','cmd','code','codecs','codeop','colorsys','configparser','Clib','copy','copyreg','csv','datetime','decimal','difflib','doctest','errno','external_import','fnmatch','formatter','fractions','functools','gc','genericpath','getopt','gettext','glob','heapq','imp','inspect','io','itertools','keyword','linecache','locale','marshal','numbers','opcode','operator','optparse','os','pdb','pickle','platform','posix','posixpath','pprint','pwd','pydoc','queue','re','reprlib','select','shutil','signal','site','site-packages.__future__','site-packages.docs','site-packages.header','site-packages.highlight','site-packages.test_sp','site-packages.turtle','socket','sre_compile','sre_constants','sre_parse','stat','string','struct','subprocess','sys','sysconfig','tarfile','tempfile','test.namespace_pkgs.module_and_namespace_package.a_test','textwrap','this','threading','time','timeit','token','tokenize','traceback','types','uuid','warnings','weakref','webbrowser','zipfile','zlib']
+for(var i=0;i<pylist.length;i++)$B.stdlib[pylist[i]]=['py']
+var js=['_ajax','_base64','_browser','_html','_jsre','_multiprocessing','_posixsubprocess','_svg','_sys','aes','builtins','dis','hashlib','hmac-md5','hmac-ripemd160','hmac-sha1','hmac-sha224','hmac-sha256','hmac-sha3','hmac-sha384','hmac-sha512','javascript','json','long_int','math','md5','modulefinder','pbkdf2','rabbit','rabbit-legacy','random','rc4','ripemd160','sha1','sha224','sha256','sha3','sha384','sha512','tripledes']
+for(var i=0;i<js.length;i++)$B.stdlib[js[i]]=['js']
+var pkglist=['browser','collections','encodings','html','http','importlib','jqueryui','logging','multiprocessing','multiprocessing.dummy','pydoc_data','site-packages.ui','test','test.encoded_modules','test.leakers','test.namespace_pkgs.not_a_namespace_pkg.foo','test.support','test.test_email','test.test_importlib','test.test_importlib.builtin','test.test_importlib.extension','test.test_importlib.frozen','test.test_importlib.import_','test.test_importlib.source','test.test_json','test.tracedmodules','unittest','unittest.test','unittest.test.testmock','urllib','xml','xml.dom','xml.etree','xml.parsers','xml.sax']
+for(var i=0;i<pkglist.length;i++)$B.stdlib[pkglist[i]]=['py',true]})(__BRYTHON__)
+
+;(function($B){var _b_=$B.builtins
+$B.$ModuleDict={__class__ : $B.$type,__name__ : 'module'}
+$B.$ModuleDict.__repr__=$B.$ModuleDict.__str__=function(self){return '<module '+self.__name__+'>'}
+$B.$ModuleDict.__mro__=[$B.$ModuleDict,_b_.object.$dict]
+$B.$ModuleDict.__setattr__=function(self,attr,value){if(self.__name__=='__builtins__'){
+$B.builtins[attr]=value}else{self[attr]=value}}
+function module(name,doc,package){return{__class__:$B.$ModuleDict,__name__:name,__doc__:doc||_b_.None,__package__:package||_b_.None}}
+module.__class__=$B.$factory
+module.$dict=$B.$ModuleDict
+$B.$ModuleDict.$factory=module
+var loader=function(){}
+var Loader={__class__:$B.$type,__name__ : 'Loader'}
+Loader.__mro__=[Loader,_b_.object.$dict]
+Loader.$factory=loader
+loader.$dict=Loader
+loader.__class__=$B.$factory
+function parent_package(mod_name){var parts=mod_name.split('.');
+parts.pop();
+return parts.join('.');}
+function $importer(){
+var $xmlhttp=new XMLHttpRequest();
+var fake_qs;
+switch($B.$options.cache){case 'version':
+fake_qs="?v="+$B.version_info[2]
+break;
+case 'browser':
+fake_qs=''
+break;
+default:
+fake_qs="?v="+(new Date().getTime())}
+var timer=setTimeout(function(){$xmlhttp.abort()
+throw _b_.ImportError("No module named '"+module+"'")},5000)
+return[$xmlhttp,fake_qs,timer]}
+function $download_module(module,url,package,blocking){var imp=$importer(),$xmlhttp=imp[0],fake_qs=imp[1],timer=imp[2],res=null,mod_name=module.__name__,no_block=Array.isArray(blocking)||blocking===false
+if(no_block){console.log('download non blocking',mod_name)
+$xmlhttp.open('GET',url+fake_qs,true)}else{$xmlhttp.open('GET',url+fake_qs,false)}
+if($B.$CORS){$xmlhttp.onload=function(){if($xmlhttp.status==200 ||$xmlhttp.status==0){res=$xmlhttp.responseText}else{
+res=_b_.FileNotFoundError("No module named '"+mod_name+"'")}}
+$xmlhttp.onerror=function(){res=_b_.FileNotFoundError("No module named '"+mod_name+"'")}}else{
+$xmlhttp.onreadystatechange=function(){if($xmlhttp.readyState==4){window.clearTimeout(timer)
+if($xmlhttp.status==200 ||$xmlhttp.status==0){res=$xmlhttp.responseText
+module.$last_modified=$xmlhttp.getResponseHeader('Last-Modified')
+if(no_block){var ext=url.substr(url.length-2)
+if(ext=='py'){try{import_py1(module,mod_name,url,package,res)}
+catch(err){console.log(err);throw err}}else if(ext=='js'){try{run_js(res,url,module)}
+catch(err){console.log(err);throw err}}
+console.log('non blocking ok',mod_name)
+blocking[1]()
+return}}else{
+console.log('Error '+$xmlhttp.status+
+' means that Python module '+mod_name+
+' was not found at url '+url)
+res=_b_.FileNotFoundError("No module named '"+mod_name+"'")}}}}
+if('overrideMimeType' in $xmlhttp){$xmlhttp.overrideMimeType("text/plain")}
+$xmlhttp.send()
+if(!no_block){
+if(res==null)throw _b_.FileNotFoundError("No module named '"+mod_name+"' (res is null)")
+if(res.constructor===Error){throw res}
+return res}}
+$B.$download_module=$download_module
+function import_js(module,path,blocking){try{var module_contents=$download_module(module,path,undefined,blocking)
+if(Array.isArray(blocking)){return}}catch(err){return null}
+run_js(module_contents,path,module)
+return true}
+function run_js(module_contents,path,module){
+try{eval(module_contents);}catch(err){console.log(err)
+throw err}
+try{$module}
+catch(err){console.log('no $module')
+throw _b_.ImportError("name '$module' is not defined in module")}
+if(module !==undefined){
+for(var attr in $module){module[attr]=$module[attr];}
+$module=module;}
+else{
+$module.__class__=$B.$ModuleDict
+$module.__name__=module.name
+$module.__repr__=$module.__str__=function(){if($B.builtin_module_names.indexOf(module.name)> -1){return "<module '"+module.name+"' (built-in)>"}
+return "<module '"+module.name+"' from "+path+" >"}
+$module.toString=function(){return "<module '"+module.name+"' from "+path+" >"}
+if(module.name !='builtins'){
+$module.__file__=path}}
+$B.imported[module.__name__]=$module
+return true}
+function show_ns(){var kk=Object.keys(window)
+for(var i=0,_len_i=kk.length;i < _len_i;i++){console.log(kk[i])
+if(kk[i].charAt(0)=='$'){console.log(eval(kk[i]))}}
+console.log('---')}
+function import_py1(module,mod_name,path,package,module_contents){console.log('importpy1',mod_name)
+$B.imported[mod_name].$is_package=module.$is_package
+$B.imported[mod_name].$last_modified=module.$last_modified
+if(path.substr(path.length-12)=='/__init__.py'){
+$B.imported[mod_name].__package__=mod_name
+$B.imported[mod_name].__path__=path
+$B.imported[mod_name].$is_package=module.$is_package=true}else if(package){$B.imported[mod_name].__package__=package}else{var mod_elts=mod_name.split('.')
+mod_elts.pop()
+$B.imported[mod_name].__package__=mod_elts.join('.')}
+$B.imported[mod_name].__file__=path
+return run_py(module_contents,path,module)}
+function import_py(module,path,package,blocking){
+var mod_name=module.__name__,module_contents=$download_module(module,path,package,blocking)
+if(Array.isArray(blocking)){return}
+$B.imported[mod_name].$is_package=module.$is_package
+$B.imported[mod_name].$last_modified=module.$last_modified
+if(path.substr(path.length-12)=='/__init__.py'){
+$B.imported[mod_name].__package__=mod_name
+$B.imported[mod_name].__path__=path
+$B.imported[mod_name].$is_package=module.$is_package=true}else if(package){$B.imported[mod_name].__package__=package}else{var mod_elts=mod_name.split('.')
+mod_elts.pop()
+$B.imported[mod_name].__package__=mod_elts.join('.')}
+$B.imported[mod_name].__file__=path
+return run_py(module_contents,path,module)}
+$B.run_py=run_py=function(module_contents,path,module,compiled){if(!compiled){var $Node=$B.$Node,$NodeJSCtx=$B.$NodeJSCtx
+$B.$py_module_path[module.__name__]=path
+var root=$B.py2js(module_contents,module.__name__,module.__name__,'__builtins__')
+var body=root.children
+root.children=[]
+var mod_node=new $Node('expression')
+new $NodeJSCtx(mod_node,'var $module=(function()')
+root.insert(0,mod_node)
+for(var i=0,_len_i=body.length;i < _len_i;i++){mod_node.add(body[i])}
+var ret_node=new $Node('expression')
+new $NodeJSCtx(ret_node,'return $locals_'+module.__name__.replace(/\./g,'_'))
+mod_node.add(ret_node)
+var ex_node=new $Node('expression')
+new $NodeJSCtx(ex_node,')(__BRYTHON__)')
+root.add(ex_node)}
+try{var js=(compiled)? module_contents : root.to_js()
+if($B.$options.debug==10){console.log('code for module '+module.__name__)
+console.log(js)}
+eval(js)}catch(err){
+throw err}
+try{
+var mod=eval('$module')
+for(var attr in mod){module[attr]=mod[attr];}
+module.__initializing__=false
+$B.imported[module.__name__]=module
+return true}catch(err){console.log(''+err+' '+' for module '+module.name)
+for(var attr in err)console.log(attr+' '+err[attr])
+if($B.debug>0){console.log('line info '+__BRYTHON__.line_info)}
+throw err}finally{}}
+function new_spec(fields){
+fields.__class__=$B.$ModuleDict
+return fields;}
+function finder_VFS(){return{__class__:finder_VFS.$dict}}
+finder_VFS.__class__=$B.$factory
+finder_VFS.$dict={$factory: finder_VFS,__class__: $B.$type,__name__: 'VFSFinder',create_module : function(cls,spec){
+return _b_.None;},exec_module : function(cls,module){var stored=module.__spec__.loader_state.stored;
+delete module.__spec__['loader_state'];
+var ext=stored[0],module_contents=stored[1];
+module.$is_package=stored[2];
+var path=$B.brython_path+'Lib/'+module.__name__
+if(module.$is_package){path +='/__init__.py'}
+module.__file__=path
+if(ext=='.js'){run_js(module_contents,module.__path__,module)}
+else{run_py(module_contents,module.__path__,module,ext=='.pyc.js')}
+if($B.debug>1){console.log('import '+module.__name__+' from VFS')}},find_module: function(cls,name,path){return{__class__:Loader,load_module:function(name,path){var spec=cls.$dict.find_spec(cls,name,path)
+var mod=module(name)
+$B.imported[name]=mod
+mod.__spec__=spec
+cls.$dict.exec_module(cls,mod)}}},find_spec : function(cls,fullname,path,prev_module){if(!$B.use_VFS){return _b_.None;}
+var stored=$B.VFS[fullname];
+if(stored===undefined){return _b_.None;}
+var is_package=stored[2],is_builtin=$B.builtin_module_names.indexOf(fullname)> -1;
+return new_spec({name : fullname,loader: cls,
+origin : is_builtin? 'built-in' : 'py_VFS',
+submodule_search_locations: is_package?[]: _b_.None,loader_state:{stored: stored},
+cached: _b_.None,parent: is_package? fullname : parent_package(fullname),has_location: _b_.False});}}
+finder_VFS.$dict.__mro__=[finder_VFS.$dict,_b_.object.$dict]
+finder_VFS.$dict.create_module.$type='classmethod'
+finder_VFS.$dict.exec_module.$type='classmethod'
+finder_VFS.$dict.find_module.$type='classmethod'
+finder_VFS.$dict.find_spec.$type='classmethod'
+function finder_stdlib_static(){return{__class__:finder_stdlib_static.$dict}}
+finder_stdlib_static.__class__=$B.$factory
+finder_stdlib_static.$dict={$factory : finder_stdlib_static,__class__ : $B.$type,__name__ : 'StdlibStatic',create_module : function(cls,spec){
+return _b_.None;},exec_module : function(cls,module,blocking){var metadata=module.__spec__.loader_state;
+module.$is_package=metadata.is_package;
+if(metadata.ext=='py'){import_py(module,metadata.path,module.__package__,blocking);}
+else{
+import_js(module,metadata.path,blocking);}
+delete module.__spec__['loader_state'];},find_module: function(cls,name,path){var spec=cls.$dict.find_spec(cls,name,path)
+if(spec===_b_.None){return _b_.None}
+return{__class__:Loader,load_module:function(name,path){var mod=module(name)
+$B.imported[name]=mod
+mod.__spec__=spec
+mod.__package__=spec.parent
+cls.$dict.exec_module(cls,mod,spec.blocking)}}},find_spec: function(cls,fullname,path,prev_module){if($B.stdlib){var address=$B.stdlib[fullname];
+if(address===undefined){var elts=fullname.split('.')
+if(elts.length>1){var mod_name=elts.pop()
+var package=$B.stdlib[elts.join('.')]
+if(package && package[1]){address=['py']}}}
+if(address !==undefined){var ext=address[0],is_pkg=address[1]!==undefined,path=$B.brython_path +((ext=='py')? 'Lib/' : 'libs/')+
+fullname.replace(/\./g,'/'),metadata={ext: ext,is_package: is_pkg,path: path +(is_pkg? '/__init__.py' :
+((ext=='py')? '.py' : '.js')),address: address}
+var res=new_spec(
+{name : fullname,loader: cls,
+origin : metadata.path,submodule_search_locations: is_pkg?[path]: _b_.None,loader_state: metadata,
+cached: _b_.None,parent: is_pkg? fullname :
+parent_package(fullname),has_location: _b_.True});
+return res}}
+return _b_.None;}}
+finder_stdlib_static.$dict.__mro__=[finder_stdlib_static.$dict,_b_.object.$dict]
+finder_stdlib_static.$dict.create_module.$type='classmethod'
+finder_stdlib_static.$dict.exec_module.$type='classmethod'
+finder_stdlib_static.$dict.find_module.$type='classmethod'
+finder_stdlib_static.$dict.find_spec.$type='classmethod'
+function finder_path(){return{__class__:finder_path.$dict}}
+finder_path.__class__=$B.$factory
+finder_path.$dict={$factory: finder_path,__class__: $B.$type,__name__: 'ImporterPath',create_module : function(cls,spec){
+return _b_.None;},exec_module : function(cls,module){var _spec=_b_.getattr(module,'__spec__'),code=_spec.loader_state.code;
+module.$is_package=_spec.loader_state.is_package,delete _spec.loader_state['code'];
+var src_type=_spec.loader_state.type
+if(src_type=='py' ||src_type=='pyc.js'){run_py(code,_spec.origin,module,src_type=='pyc.js');}
+else if(_spec.loader_state.type=='js'){run_js(code,_spec.origin,module)}},find_module: function(cls,name,path){return finder_path.$dict.find_spec(cls,name,path)},find_spec : function(cls,fullname,path,prev_module){if(is_none(path)){
+path=$B.path}
+for(var i=0,li=path.length;i<li;++i){var path_entry=path[i];
+if(path_entry[path_entry.length - 1]!='/'){path_entry +='/'}
+var finder=$B.path_importer_cache[path_entry];
+if(finder===undefined){var finder_notfound=true;
+for(var j=0,lj=$B.path_hooks.length;
+j < lj && finder_notfound;
+++j){var hook=$B.path_hooks[j];
+try{
+finder=_b_.getattr(hook,'__call__')(path_entry)
+finder_notfound=false;}
+catch(e){if(e.__class__ !==_b_.ImportError.$dict){throw e;}}}
+if(finder_notfound){$B.path_importer_cache[path_entry]=_b_.None;}}
+if(is_none(finder))
+continue;
+var spec=_b_.getattr(_b_.getattr(finder,'find_spec'),'__call__')(fullname,prev_module);
+if(!is_none(spec)){return spec;}}
+return _b_.None;}}
+finder_path.$dict.__mro__=[finder_path.$dict,_b_.object.$dict]
+finder_path.$dict.create_module.$type='classmethod'
+finder_path.$dict.exec_module.$type='classmethod'
+finder_path.$dict.find_module.$type='classmethod'
+finder_path.$dict.find_spec.$type='classmethod'
+function vfs_hook(path){if(path.substr(-1)=='/'){path=path.slice(0,-1);}
+var ext=path.substr(-7);
+if(ext !='.vfs.js'){throw _b_.ImportError('VFS file URL must end with .vfs.js extension');}
+self={__class__: vfs_hook.$dict,path: path};
+vfs_hook.$dict.load_vfs(self);
+return self;}
+vfs_hook.__class__=$B.$factory
+vfs_hook.$dict={$factory: vfs_hook,__class__: $B.$type,__name__: 'VfsPathFinder',load_vfs: function(self){try{var code=$download_module({__name__:'<VFS>'},self.path)}
+catch(e){self.vfs=undefined;
+throw new _b_.ImportError(e.$message ||e.message);}
+eval(code);
+try{
+self.vfs=$vfs;}
+catch(e){throw new _b_.ImportError('Expecting $vfs var in VFS file');}
+$B.path_importer_cache[self.path + '/']=self;},find_spec: function(self,fullname,module){if(self.vfs===undefined){try{vfs_hook.$dict.load_vfs(self)}
+catch(e){console.log("Could not load VFS while importing '" + fullname + "'");
+return _b_.None;}}
+var stored=self.vfs[fullname];
+if(stored===undefined){return _b_.None;}
+var is_package=stored[2];
+return new_spec({name : fullname,loader: finder_VFS,
+origin : self.path + '#' + fullname,
+submodule_search_locations: is_package?[self.path]:
+_b_.None,loader_state:{stored: stored},
+cached: _b_.None,parent: is_package? fullname : parent_package(fullname),has_location: _b_.True});},invalidate_caches: function(self){self.vfs=undefined;}}
+vfs_hook.$dict.__mro__=[vfs_hook.$dict,_b_.object.$dict]
+function url_hook(path_entry,hint){return{__class__: url_hook.$dict,path_entry:path_entry,hint:hint }}
+url_hook.__class__=$B.$factory
+url_hook.$dict={$factory: url_hook,__class__: $B.$type,__name__ : 'UrlPathFinder',__repr__: function(self){return '<UrlPathFinder' +(self.hint? " for '" + self.hint + "'":
+"(unbound)")+ ' at ' + self.path_entry + '>'},find_spec : function(self,fullname,module){var loader_data={},notfound=true,hint=self.hint,base_path=self.path_entry + fullname.match(/[^.]+$/g)[0],modpaths=[];
+var tryall=hint===undefined;
+if(tryall ||hint=='js'){
+modpaths=[[base_path + '.js','js',false]];}
+if(tryall ||hint=='pyc.js'){
+modpaths=modpaths.concat([[base_path + '.pyc.js','pyc.js',false],[base_path + '/__init__.pyc.js','pyc.js',true]]);}
+if(tryall ||hint=='py'){
+modpaths=modpaths.concat([[base_path + '.py','py',false],[base_path + '/__init__.py','py',true]]);}
+for(var j=0;notfound && j < modpaths.length;++j){try{var file_info=modpaths[j];
+loader_data.code=$download_module({__name__:fullname},file_info[0]);
+notfound=false;
+loader_data.type=file_info[1];
+loader_data.is_package=file_info[2];
+if(hint===undefined){self.hint=file_info[1];
+$B.path_importer_cache[self.path_entry]=self;}
+if(loader_data.is_package){
+$B.path_importer_cache[base_path + '/']=
+url_hook(base_path + '/',self.hint);}
+loader_data.path=file_info[0];}catch(err){}}
+if(!notfound){return new_spec({name : fullname,loader: finder_path,origin : loader_data.path,
+submodule_search_locations: loader_data.is_package?[base_path]:
+_b_.None,loader_state: loader_data,
+cached: _b_.None,parent: loader_data.is_package? fullname :
+parent_package(fullname),has_location: _b_.True});}
+return _b_.None;},invalidate_caches : function(self){}}
+url_hook.$dict.__mro__=[url_hook.$dict,_b_.object.$dict]
+$B.$path_hooks=[vfs_hook,url_hook];
+$B.path_importer_cache={};
+var _sys_paths=[[$B.script_dir + '/','py'],[$B.brython_path + 'Lib/','py'],[$B.brython_path + 'Lib/site-packages/','py'],[$B.brython_path + 'libs/','js']];
+for(i=0;i < _sys_paths.length;++i){var _path=_sys_paths[i],_type=_path[1];
+_path=_path[0];
+$B.path_importer_cache[_path]=url_hook(_path,_type);}
+delete _path;
+delete _type;
+delete _sys_paths;
+$B.is_none=function(o){return o===undefined ||o==_b_.None;}
+$B.$__import__=function(mod_name,globals,locals,fromlist,level,blocking){
+var modobj=$B.imported[mod_name],parsed_name=mod_name.split('.');
+if(modobj==_b_.None){
+throw _b_.ImportError(mod_name)}
+if(modobj===undefined){
+if(is_none(fromlist)){fromlist=[];}
+for(var i=0,modsep='',_mod_name='',len=parsed_name.length - 1,__path__=_b_.None;i <=len;++i){var _parent_name=_mod_name;
+_mod_name +=modsep + parsed_name[i];
+modsep='.';
+var modobj=$B.imported[_mod_name];
+if(modobj==_b_.None){
+throw _b_.ImportError(_mod_name)}
+else if(modobj===undefined){try{$B.import_hooks(_mod_name,__path__,undefined,blocking)}
+catch(err){delete $B.imported[_mod_name]
+throw err}
+if(is_none($B.imported[_mod_name])){throw _b_.ImportError(_mod_name)}
+else{
+if(_parent_name){_b_.setattr($B.imported[_parent_name],parsed_name[i],$B.imported[_mod_name]);}}}
+if(i < len){try{__path__=_b_.getattr($B.imported[_mod_name],'__path__')}
+catch(e){
+if(i==len-1 && $B.imported[_mod_name][parsed_name[len]]&& 
+$B.imported[_mod_name][parsed_name[len]].__class__===$B.$ModuleDict){return $B.imported[_mod_name][parsed_name[len]]}
+throw _b_.ImportError(_mod_name)}}}}
+else if(Array.isArray(blocking)){var frames=$B.frames_stack
+for(var i=0;i<frames.length;i++){var locals_id='$locals_'+frames[i][0].replace(/\./g,'_')
+eval('var '+locals_id+'=frames[i][1]')}
+eval('var $locals='+locals_id)
+blocking[1]()}
+if(fromlist.length > 0){
+return $B.imported[mod_name]}
+else{
+return $B.imported[parsed_name[0]]}}
+$B.$import=function(mod_name,fromlist,aliases,locals,blocking){var parts=mod_name.split('.');
+if(mod_name[mod_name.length - 1]=='.'){parts.pop()}
+var norm_parts=[],prefix=true;
+for(var i=0,_len_i=parts.length;i < _len_i;i++){var p=parts[i];
+if(prefix && p==''){
+elt=norm_parts.pop();
+if(elt===undefined){throw _b_.ImportError("Parent module '' not loaded, cannot perform relative import");}}
+else{
+prefix=false;
+norm_parts.push(p.substr(0,2)=='$$' ? p.substr(2): p)}}
+var mod_name=norm_parts.join('.')
+if($B.$options.debug==10){console.log('$import '+mod_name)
+console.log('use VFS ? '+$B.use_VFS)
+console.log('use static stdlib paths ? '+$B.static_stdlib_import)}
+var current_frame=$B.frames_stack[$B.frames_stack.length-1],_globals=current_frame[3],__import__=_globals['__import__'],globals=$B.obj_dict(_globals);
+if(__import__===undefined){
+__import__=$B.$__import__;}
+var modobj=_b_.getattr(__import__,'__call__')(mod_name,globals,undefined,fromlist,0);
+if(!fromlist ||fromlist.length==0){
+var alias=aliases[mod_name];
+if(alias){locals[alias]=$B.imported[mod_name];}
+else{
+locals[norm_parts[0]]=modobj;}}
+else{
+var __all__=fromlist,thunk={};
+if(fromlist && fromlist[0]=='*'){__all__=_b_.getattr(modobj,'__all__',thunk);
+if(__all__ !==thunk){
+aliases={};}}
+if(__all__===thunk){
+for(var attr in modobj){if(attr[0]!=='_'){locals[attr]=modobj[attr];}}}
+else{
+for(var i=0,l=__all__.length;i < l;++i){var name=__all__[i];
+var alias=aliases[name]||name;
+try{
+locals[alias]=_b_.getattr(modobj,name);}
+catch($err1){
+try{_b_.getattr(__import__,'__call__')(mod_name + '.' + name,globals,undefined,[],0);
+locals[alias]=_b_.getattr(modobj,name);}
+catch($err3){
+throw _b_.ImportError("cannot import name '"+name+"'")}}}}}}
+$B.$import_non_blocking=function(mod_name,func){console.log('import non blocking',mod_name)
+$B.$import(mod_name,[],[],{},[false,func])}
+$B.$meta_path=[finder_VFS,finder_stdlib_static,finder_path];
+function optimize_import_for_path(path,filetype){if(path.slice(-1)!='/'){path=path + '/' }
+var value=(filetype=='none')? _b_.None : url_hook(path,filetype);
+$B.path_importer_cache[path]=value;}
+_importlib_module={__class__ : $B.$ModuleDict,__name__ : '_importlib',Loader: Loader,VFSFinder: finder_VFS,StdlibStatic: finder_stdlib_static,ImporterPath: finder_path,VFSPathFinder : vfs_hook,UrlPathFinder: url_hook,optimize_import_for_path : optimize_import_for_path}
+_importlib_module.__repr__=_importlib_module.__str__=function(){return "<module '_importlib' (built-in)>"}
+$B.imported['_importlib']=$B.modules['_importlib']=_importlib_module})(__BRYTHON__)
+;(function($B){eval($B.InjectBuiltins())
+var $ObjectDict=_b_.object.$dict
+function $err(op,other){var msg="unsupported operand type(s) for "+op
+msg +=": 'float' and '"+$.get_class(other).__name__+"'"
+throw _b_.TypeError(msg)}
+var $FloatDict={__class__:$B.$type,__dir__:$ObjectDict.__dir__,__name__:'float',$native:true}
+$FloatDict.as_integer_ratio=function(self){if(self.valueOf()==Number.POSITIVE_INFINITY ||
+self.valueOf()==Number.NEGATIVE_INFINITY){throw _b_.OverflowError("Cannot pass infinity to float.as_integer_ratio.")}
+if(!Number.isFinite(self.valueOf())){throw _b_.ValueError("Cannot pass NaN to float.as_integer_ratio.")}
+var tmp=_b_.$frexp(self.valueOf())
+var fp=tmp[0]
+var exponent=tmp[1]
+for(var i=0;i < 300;i++){if(fp==Math.floor(fp)){break}else{
+fp *=2
+exponent--}}
+numerator=float(fp)
+py_exponent=abs(exponent)
+denominator=1
+py_exponent=_b_.getattr(int(denominator),"__lshift__")(py_exponent)
+if(exponent > 0){numerator=numerator * py_exponent}else{
+denominator=py_exponent}
+return _b_.tuple([_b_.int(numerator),_b_.int(denominator)])}
+$FloatDict.__bool__=function(self){return _b_.bool(self.valueOf())}
+$FloatDict.__class__=$B.$type
+$FloatDict.__eq__=function(self,other){if(isNaN(self)&& isNaN(other)){return true}
+if(isinstance(other,_b_.int))return self==other
+if(isinstance(other,float)){
+return self.valueOf()==other.valueOf()}
+if(isinstance(other,_b_.complex)){if(other.imag !=0)return false
+return self==other.real}
+if(_b_.hasattr(other,'__eq__')){return _b_.getattr(other,'__eq__')(self.value)}
+return self.value===other}
+$FloatDict.__floordiv__=function(self,other){if(isinstance(other,[_b_.int,float])){if(other.valueOf()==0)throw ZeroDivisionError('division by zero')
+return float(Math.floor(self/other))}
+if(hasattr(other,'__rfloordiv__')){return getattr(other,'__rfloordiv__')(self)}
+$err('//',other)}
+$FloatDict.fromhex=function(arg){
+if(!isinstance(arg,_b_.str)){throw _b_.ValueError('argument must be a string')}
+var value=arg.trim()
+switch(value.toLowerCase()){case '+inf':
+case 'inf':
+case '+infinity':
+case 'infinity':
+return $FloatClass(Infinity)
+case '-inf':
+case '-infinity':
+return $FloatClass(-Infinity)
+case '+nan':
+case 'nan':
+return $FloatClass(Number.NaN)
+case '-nan':
+return $FloatClass(-Number.NaN)
+case '':
+throw _b_.ValueError('count not convert string to float')}
+var _m=/^(\d*\.?\d*)$/.exec(value)
+if(_m !==null)return $FloatClass(parseFloat(_m[1]))
+var _m=/^(\+|-)?(0x)?([0-9A-F]+\.?)?(\.[0-9A-F]+)?(p(\+|-)?\d+)?$/i.exec(value)
+if(_m==null)throw _b_.ValueError('invalid hexadecimal floating-point string')
+var _sign=_m[1]
+var _int=parseInt(_m[3]||'0',16)
+var _fraction=_m[4]||'.0'
+var _exponent=_m[5]||'p0'
+if(_sign=='-'){_sign=-1}else{_sign=1}
+var _sum=_int
+for(var i=1,_len_i=_fraction.length;i < _len_i;i++){_sum+=parseInt(_fraction.charAt(i),16)/Math.pow(16,i)}
+return new Number(_sign * _sum * Math.pow(2,parseInt(_exponent.substring(1))))}
+$FloatDict.__getformat__=function(arg){if(arg=='double' ||arg=='float')return 'IEEE, little-endian'
+throw _b_.ValueError("__getformat__() argument 1 must be 'double' or 'float'")}
+function preformat(self,fmt){if(fmt.empty){return _b_.str(self)}
+if(fmt.type && 'eEfFgGn%'.indexOf(fmt.type)==-1){throw _b_.ValueError("Unknown format code '"+fmt.type+
+"' for object of type 'float'")}
+if(isNaN(self)){if(fmt.type=='f'||fmt.type=='g'){return 'nan'}
+else{return 'NAN'}}
+if(self==Number.POSITIVE_INFINITY){if(fmt.type=='f'||fmt.type=='g'){return 'inf'}
+else{return 'INF'}}
+if(fmt.precision===undefined && fmt.type !==undefined){fmt.precision=6}
+if(fmt.type=='%'){self *=100}
+if(fmt.type=='e'){var res=self.toExponential(fmt.precision),exp=parseInt(res.substr(res.search('e')+1))
+if(Math.abs(exp)<10){res=res.substr(0,res.length-1)+'0'+
+res.charAt(res.length-1)}
+return res }
+if(fmt.precision!==undefined){
+var prec=fmt.precision
+if(prec==0){return Math.round(self)+''}
+if(prec && 'fF%'.indexOf(fmt.type)>-1){var pos_pt=Math.abs(self).toString().search(/\./)
+if(pos_pt>-1){prec+=pos_pt}else{prec=Math.abs(self).toString().length}}
+var res=self.toPrecision(prec),pt_pos=res.indexOf('.')
+if(fmt.type!==undefined && 
+(fmt.type=='%' ||fmt.type.toLowerCase()=='f')){if(pt_pos==-1){res +='.'+'0'.repeat(fmt.precision)}
+else{missing=fmt.precision-res.length+pt_pos+1
+if(missing>0)res +='0'.repeat(missing)}}else{var res1=self.toExponential(fmt.precision-1),exp=parseInt(res1.substr(res1.search('e')+1))
+if(exp<-4 ||exp>=fmt.precision-1){res=res1
+if(Math.abs(exp)<10){res=res.substr(0,res.length-1)+'0'+
+res.charAt(res.length-1)}}}}else{var res=_b_.str(self)}
+if(fmt.type===undefined||'gGn'.indexOf(fmt.type)!=-1){
+while(res.charAt(res.length-1)=='0'){res=res.substr(0,res.length-1)}
+if(res.charAt(res.length-1)=='.'){if(fmt.type===undefined){res +='0'}
+else{res=res.substr(0,res.length-1)}}}
+if(fmt.sign!==undefined){if((fmt.sign==' ' ||fmt.sign=='+')&& self>0){res=fmt.sign+res}}
+if(fmt.type=='%'){res+='%'}
+return res}
+$FloatDict.__format__=function(self,format_spec){var fmt=new $B.parse_format_spec(format_spec)
+fmt.align=fmt.align ||'>'
+var raw=preformat(self,fmt).split('.'),_int=raw[0]
+if(fmt.comma){var len=_int.length,nb=Math.ceil(_int.length/3),chunks=[]
+for(var i=0;i<nb;i++){chunks.push(_int.substring(len-3*i-3,len-3*i))}
+chunks.reverse()
+raw[0]=chunks.join(',')}
+return $B.format_width(raw.join('.'),fmt)}
+$FloatDict.__hash__=function(self){if(self===undefined){return $FloatDict.__hashvalue__ ||$B.$py_next_hash-- }
+var _v=self.valueOf()
+if(_v===Infinity)return 314159
+if(_v===-Infinity)return -271828
+if(isNaN(_v))return 0
+if(_v==Math.round(_v))return Math.round(_v)
+var r=_b_.$frexp(_v)
+r[0]*=Math.pow(2,31)
+var hipart=_b_.int(r[0])
+r[0]=(r[0]- hipart)* Math.pow(2,31)
+var x=hipart + _b_.int(r[0])+(r[1]<< 15)
+return x & 0xFFFFFFFF}
+_b_.$isninf=function(x){var x1=x
+if(isinstance(x,float))x1=x.valueOf()
+return x1==-Infinity ||x1==Number.NEGATIVE_INFINITY}
+_b_.$isinf=function(x){var x1=x
+if(isinstance(x,float))x1=x.valueOf()
+return x1==Infinity ||x1==-Infinity ||x1==Number.POSITIVE_INFINITY ||x1==Number.NEGATIVE_INFINITY}
+_b_.$fabs=function(x){return x>0?float(x):float(-x)}
+_b_.$frexp=function(x){var x1=x
+if(isinstance(x,float))x1=x.valueOf()
+if(isNaN(x1)||_b_.$isinf(x1)){return[x1,-1]}
+if(x1==0)return[0,0]
+var sign=1,ex=0,man=x1
+if(man < 0.){sign=-sign
+man=-man}
+while(man < 0.5){man *=2.0
+ex--}
+while(man >=1.0){man *=0.5
+ex++}
+man *=sign
+return[man ,ex]}
+_b_.$ldexp=function(x,i){if(_b_.$isninf(x))return float('-inf')
+if(_b_.$isinf(x))return float('inf')
+var y=x
+if(isinstance(x,float))y=x.valueOf()
+if(y==0)return y
+var j=i
+if(isinstance(i,float))j=i.valueOf()
+return y * Math.pow(2,j)}
+$FloatDict.hex=function(self){
+var DBL_MANT_DIG=53 
+var TOHEX_NBITS=DBL_MANT_DIG + 3 -(DBL_MANT_DIG+2)%4;
+switch(self.valueOf()){case Infinity:
+case -Infinity:
+case Number.NaN:
+case -Number.NaN:
+return self
+case -0:
+return '-0x0.0p0'
+case 0:
+return '0x0.0p0'}
+var _a=_b_.$frexp(_b_.$fabs(self.valueOf()))
+var _m=_a[0],_e=_a[1]
+var _shift=1 - Math.max(-1021 - _e,0)
+_m=_b_.$ldexp(_m,_shift)
+_e -=_shift
+var _int2hex='0123456789ABCDEF'.split('')
+var _s=_int2hex[Math.floor(_m)]
+_s+='.'
+_m -=Math.floor(_m)
+for(var i=0;i <(TOHEX_NBITS-1)/4;i++){_m*=16.0
+_s+=_int2hex[Math.floor(_m)]
+_m-=Math.floor(_m)}
+var _esign='+'
+if(_e < 0){_esign='-'
+_e=-_e}
+if(self.value < 0)return "-0x" + _s + 'p' + _esign + _e;
+return "0x" + _s + 'p' + _esign + _e;}
+$FloatDict.__init__=function(self,value){self=new Number(value)}
+$FloatDict.__int__=function(self){return parseInt(self)}
+$FloatDict.is_integer=function(self){return _b_.int(self)==self}
+$FloatDict.__mod__=function(self,other){
+if(other==0){throw ZeroDivisionError('float modulo')}
+if(isinstance(other,_b_.int))return new Number((self%other+other)%other)
+if(isinstance(other,float)){
+var q=Math.floor(self/other),r=self-other*q
+return new Number(r)}
+if(isinstance(other,_b_.bool)){var bool_value=0;
+if(other.valueOf())bool_value=1;
+return new Number((self%bool_value+bool_value)%bool_value)}
+if(hasattr(other,'__rmod__'))return getattr(other,'__rmod__')(self)
+$err('%',other)}
+$FloatDict.__mro__=[$FloatDict,$ObjectDict]
+$FloatDict.__mul__=function(self,other){if(isinstance(other,_b_.int)){if(other.__class__==$B.LongInt.$dict){return new Number(self*parseFloat(other.value))}
+return new Number(self*other)}
+if(isinstance(other,float))return new Number(self*other)
+if(isinstance(other,_b_.bool)){var bool_value=0;
+if(other.valueOf())bool_value=1;
+return new Number(self*bool_value)}
+if(isinstance(other,_b_.complex)){return _b_.complex(float(self*other.real),float(self*other.imag))}
+if(hasattr(other,'__rmul__'))return getattr(other,'__rmul__')(self)
+$err('*',other)}
+$FloatDict.__ne__=function(self,other){return !$FloatDict.__eq__(self,other)}
+$FloatDict.__neg__=function(self,other){return float(-self)}
+$FloatDict.__pos__=function(self){return self}
+$FloatDict.__pow__=function(self,other){var other_int=isinstance(other,_b_.int)
+if(other_int ||isinstance(other,float)){if(self==1){return self}
+if(other==0){return new Number(1)}
+if(self==-1 && 
+(!isFinite(other)||other.__class__===$B.LongInt.$dict ||!$B.is_safe_int(other))
+&& !isNaN(other)){return new Number(1)}
+else if(self==0 && isFinite(other)&& other<0){throw _b_.ZeroDivisionError("0.0 cannot be raised to a negative power")}else if(self==Number.NEGATIVE_INFINITY && !isNaN(other)){if(other<0 && other%2==1){return new Number(-0.0)}else if(other<0){return new Number(0)}
+else if(other>0 && other%2==1){return Number.NEGATIVE_INFINITY}else{return Number.POSITIVE_INFINITY}}else if(self==Number.POSITIVE_INFINITY && !isNaN(other)){return other>0 ? self : new Number(0)}
+if(other==Number.NEGATIVE_INFINITY && !isNaN(self)){return Math.abs(self)<1 ? Number.POSITIVE_INFINITY : new Number(0)}else if(other==Number.POSITIVE_INFINITY && !isNaN(self)){return Math.abs(self)<1 ? new Number(0): Number.POSITIVE_INFINITY}
+if(self<0 && !_b_.getattr(other,'__eq__')(_b_.int(other))){
+return _b_.complex.$dict.__pow__(_b_.complex(self,0),other)}
+return float(Math.pow(self,other))}else if(isinstance(other,_b_.complex)){var img=other.imag,preal=Math.pow(self,other.real),ln=Math.log(self)
+return _b_.complex(preal*Math.cos(ln),preal*Math.sin(ln))}
+if(hasattr(other,'__rpow__'))return getattr(other,'__rpow__')(self)
+$err("** or pow()",other)}
+$FloatDict.__repr__=$FloatDict.__str__=function(self){if(self===float)return "<class 'float'>"
+if(self.valueOf()==Infinity)return 'inf'
+if(self.valueOf()==-Infinity)return '-inf'
+if(isNaN(self.valueOf()))return 'nan'
+var res=self.valueOf()+'' 
+if(res.indexOf('.')==-1)res+='.0'
+return _b_.str(res)}
+$FloatDict.__setattr__=function(self,attr,value){if(self.constructor===Number){if($FloatDict[attr]===undefined){throw _b_.AttributeError("'float' object has no attribute '"+attr+"'")}else{throw _b_.AttributeError("'float' object attribute '"+attr+"' is read-only")}}
+self[attr]=value
+return $N}
+$FloatDict.__truediv__=function(self,other){if(isinstance(other,[_b_.int,float])){if(other.valueOf()==0)throw ZeroDivisionError('division by zero')
+return float(self/other)}
+if(isinstance(other,_b_.complex)){var cmod=other.real*other.real+other.imag*other.imag
+if(cmod==0)throw ZeroDivisionError('division by zero')
+return _b_.complex(float(self*other.real/cmod),float(-self*other.imag/cmod))}
+if(hasattr(other,'__rtruediv__'))return getattr(other,'__rtruediv__')(self)
+$err('/',other)}
+var $op_func=function(self,other){if(isinstance(other,_b_.int)){if(typeof other=='boolean'){return other ? self-1 : self}else if(other.__class__===$B.LongInt.$dict){return float(self-parseInt(other.value))}else{return float(self-other)}}
+if(isinstance(other,float))return float(self-other)
+if(isinstance(other,_b_.bool)){var bool_value=0;
+if(other.valueOf())bool_value=1;
+return float(self-bool_value)}
+if(isinstance(other,_b_.complex)){return _b_.complex(self - other.real,-other.imag)}
+if(hasattr(other,'__rsub__'))return getattr(other,'__rsub__')(self)
+$err('-',other)}
+$op_func +='' 
+var $ops={'+':'add','-':'sub'}
+for(var $op in $ops){var $opf=$op_func.replace(/-/gm,$op)
+$opf=$opf.replace(/__rsub__/gm,'__r'+$ops[$op]+'__')
+eval('$FloatDict.__'+$ops[$op]+'__ = '+$opf)}
+var $comp_func=function(self,other){if(isinstance(other,_b_.int)){if(other.__class__===$B.LongInt.$dict){return self > parseInt(other.value)}
+return self > other.valueOf()}
+if(isinstance(other,float))return self > other
+if(isinstance(other,_b_.bool)){return self.valueOf()> _b_.bool.$dict.__hash__(other)}
+if(hasattr(other,'__int__')||hasattr(other,'__index__')){return $IntDict.__gt__(self,$B.$GetInt(other))}
+var inv_op=getattr(other,'__le__',null)
+if(inv_op !==null){return inv_op(self)}
+var inv_op=getattr(other,'__le__',null)
+if(inv_op !==null){return inv_op(self)}
+throw _b_.TypeError(
+"unorderable types: "+self.__class__.__name__+'() > '+$B.get_class(other).__name__+"()")}
+$comp_func +='' 
+for(var $op in $B.$comps){eval("$FloatDict.__"+$B.$comps[$op]+'__ = '+
+$comp_func.replace(/>/gm,$op).
+replace(/__gt__/gm,'__'+$B.$comps[$op]+'__').
+replace(/__le__/,'__'+$B.$inv_comps[$op]+'__'))}
+$B.make_rmethods($FloatDict)
+var $notimplemented=function(self,other){throw _b_.TypeError(
+"unsupported operand types for OPERATOR: '"+self.__class__.__name__+
+"' and '"+$B.get_class(other).__name__+"'")}
+$notimplemented +='' 
+for(var $op in $B.$operators){
+switch($op){case '+=':
+case '-=':
+case '*=':
+case '/=':
+case '%=':
+break
+default:
+var $opfunc='__'+$B.$operators[$op]+'__'
+if($FloatDict[$opfunc]===undefined){eval('$FloatDict.'+$opfunc+"="+$notimplemented.replace(/OPERATOR/gm,$op))}}}
+function $FloatClass(value){return new Number(value)}
+function to_digits(s){
+var arabic_digits='\u0660\u0661\u0662\u0663\u0664\u0665\u0666\u0667\u0668\u0669',res=''
+for(var i=0;i<s.length;i++){var x=arabic_digits.indexOf(s[i])
+if(x>-1){res +=x}
+else{res +=s[i]}}
+return res}
+var float=function(value){switch(value){case undefined:
+return $FloatClass(0.0)
+case Number.MAX_VALUE:
+return $FloatClass(Infinity)
+case -Number.MAX_VALUE:
+return $FloatClass(-Infinity)}
+if(typeof value=="number")return $FloatClass(value)
+if(isinstance(value,float)){return value}
+if(isinstance(value,_b_.bytes)){var s=getattr(value,'decode')('latin-1')
+return float(getattr(value,'decode')('latin-1'))}
+if(hasattr(value,'__float__')){return $FloatClass(getattr(value,'__float__')())}
+if(typeof value=='string'){value=value.trim()
+switch(value.toLowerCase()){case '+inf':
+case 'inf':
+case '+infinity':
+case 'infinity':
+return Number.POSITIVE_INFINITY
+case '-inf':
+case '-infinity':
+return Number.NEGATIVE_INFINITY
+case '+nan':
+case 'nan':
+return Number.NaN
+case '-nan':
+return -Number.NaN
+case '':
+throw _b_.ValueError('count not convert string to float')
+default:
+value=to_digits(value)
+if(isFinite(value))return $FloatClass(eval(value))
+else{
+_b_.str.$dict.encode(value,'latin-1')
+throw _b_.ValueError("Could not convert to float(): '"+_b_.str(value)+"'")}}}
+throw _b_.TypeError("float() argument must be a string or a number, not '"+
+$B.get_class(value).__name__+"'")}
+float.__class__=$B.$factory
+float.$dict=$FloatDict
+$FloatDict.$factory=float
+$FloatDict.__new__=$B.$__new__(float)
+$B.$FloatClass=$FloatClass
+_b_.float=float})(__BRYTHON__)
+;(function($B){eval($B.InjectBuiltins())
+var $ObjectDict=_b_.object.$dict,$N=_b_.None
+function $err(op,other){var msg="unsupported operand type(s) for "+op
+msg +=": 'int' and '"+$B.get_class(other).__name__+"'"
+throw _b_.TypeError(msg)}
+var $IntDict={__class__:$B.$type,__name__:'int',__dir__:$ObjectDict.__dir__,toString:function(){return '$IntDict'},$native:true,descriptors:{'numerator':true,'denominator':true,'imag':true,'real':true}}
+$IntDict.from_bytes=function(){var $=$B.args("from_bytes",3,{bytes:null,byteorder:null,signed:null},['bytes','byteorder','signed'],arguments,{signed:False},null,null)
+var x=$.bytes,byteorder=$.byteorder,signed=$.signed
+var _bytes,_len
+if(isinstance(x,[_b_.list,_b_.tuple])){_bytes=x
+_len=len(x)}else if(isinstance(x,[_b_.bytes,_b_.bytearray])){_bytes=x.source
+_len=x.source.length}else{
+_b_.TypeError("Error! " + _b_.type(x)+ " is not supported in int.from_bytes. fix me!")}
+switch(byteorder){case 'big':
+var num=_bytes[_len - 1];
+var _mult=256
+for(var i=(_len - 2);i >=0;i--){
+num=$B.add($B.mul(_mult,_bytes[i]),num)
+_mult=$B.mul(_mult,256)}
+if(!signed)return num
+if(_bytes[0]< 128)return num
+return $B.sub(num,_mult)
+case 'little':
+var num=_bytes[0]
+if(num >=128)num=num - 256
+var _mult=256
+for(var i=1;i < _len;i++){num=$B.add($B.mul(_mult,_bytes[i]),num)
+_mult=$B.mul(_mult,256)}
+if(!signed)return num
+if(_bytes[_len - 1]< 128)return num
+return $B.sub(num,_mult)}
+throw _b_.ValueError("byteorder must be either 'little' or 'big'");}
+$IntDict.to_bytes=function(length,byteorder,star){
+throw _b_.NotImplementedError("int.to_bytes is not implemented yet")}
+$IntDict.__abs__=function(self){return abs(self)}
+$IntDict.__bool__=function(self){return new Boolean(self.valueOf())}
+$IntDict.__ceil__=function(self){return Math.ceil(self)}
+$IntDict.__class__=$B.$type
+$IntDict.__divmod__=function(self,other){return divmod(self,other)}
+$IntDict.__eq__=function(self,other){
+if(other===undefined)return self===int
+if(isinstance(other,int))return self.valueOf()==other.valueOf()
+if(isinstance(other,_b_.float))return self.valueOf()==other.valueOf()
+if(isinstance(other,_b_.complex)){if(other.imag !=0)return False
+return self.valueOf()==other.real}
+if(hasattr(other,'__eq__'))return getattr(other,'__eq__')(self)
+return self.valueOf()===other}
+function preformat(self,fmt){if(fmt.empty){return _b_.str(self)}
+if(fmt.type && 'bcdoxXn'.indexOf(fmt.type)==-1){throw _b_.ValueError("Unknown format code '"+fmt.type+
+"' for object of type 'int'")}
+switch(fmt.type){case undefined:
+case 'd':
+return self.toString()
+case 'b':
+return(fmt.alternate ? '0b' : '')+ self.toString(2)
+case 'c':
+return _b_.chr(self)
+case 'o':
+return(fmt.alternate ? '0o' : '')+ self.toString(8)
+case 'x':
+return(fmt.alternate ? '0x' : '')+ self.toString(16)
+case 'X':
+return(fmt.alternate ? '0X' : '')+ self.toString(16).toUpperCase()
+case 'n':
+return self }
+return res}
+$IntDict.__format__=function(self,format_spec){var fmt=new $B.parse_format_spec(format_spec)
+if(fmt.type && 'eEfFgG%'.indexOf(fmt.type)!=-1){
+return _b_.float.$dict.__format__(self,format_spec)}
+fmt.align=fmt.align ||'>'
+var res=preformat(self,fmt)
+if(fmt.comma){var len=res.length,nb=Math.ceil(res.length/3),chunks=[]
+for(var i=0;i<nb;i++){chunks.push(res.substring(len-3*i-3,len-3*i))}
+chunks.reverse()
+res=chunks.join(',')}
+return $B.format_width(res,fmt)}
+$IntDict.__floordiv__=function(self,other){if(isinstance(other,int)){if(other==0)throw ZeroDivisionError('division by zero')
+return Math.floor(self/other)}
+if(isinstance(other,_b_.float)){if(!other.valueOf())throw ZeroDivisionError('division by zero')
+return Math.floor(self/other)}
+if(hasattr(other,'__rfloordiv__')){return getattr(other,'__rfloordiv__')(self)}
+$err("//",other)}
+$IntDict.__hash__=function(self){if(self===undefined){return $IntDict.__hashvalue__ ||$B.$py_next_hash-- }
+return self.valueOf()}
+$IntDict.__index__=function(self){return self}
+$IntDict.__init__=function(self,value){if(value===undefined){value=0}
+self.toString=function(){return value}
+return $N}
+$IntDict.__int__=function(self){return self}
+$IntDict.__invert__=function(self){return ~self}
+$IntDict.__lshift__=function(self,other){if(isinstance(other,int)){return int($B.LongInt.$dict.__lshift__($B.LongInt(self),$B.LongInt(other)))}
+var rlshift=getattr(other,'__rlshift__',null)
+if(rlshift!==null){return rlshift(self)}
+$err('<<',other)}
+$IntDict.__mod__=function(self,other){
+if(isinstance(other,_b_.tuple)&& other.length==1)other=other[0]
+if(isinstance(other,[int,_b_.float,bool])){if(other===false){other=0}else if(other===true){other=1}
+if(other==0){throw _b_.ZeroDivisionError(
+"integer division or modulo by zero")}
+return(self%other+other)%other}
+if(hasattr(other,'__rmod__'))return getattr(other,'__rmod__')(self)
+$err('%',other)}
+$IntDict.__mro__=[$IntDict,$ObjectDict]
+$IntDict.__mul__=function(self,other){var val=self.valueOf()
+if(typeof other==="string"){return other.repeat(val)}
+if(isinstance(other,int)){var res=self*other
+if(res>$B.min_int && res<$B.max_int){return res}
+else{return int($B.LongInt.$dict.__mul__($B.LongInt(self),$B.LongInt(other)))}}
+if(isinstance(other,_b_.float)){return new Number(self*other)}
+if(isinstance(other,_b_.bool)){if(other.valueOf())return self
+return int(0)}
+if(isinstance(other,_b_.complex)){return _b_.complex($IntDict.__mul__(self,other.real),$IntDict.__mul__(self,other.imag))}
+if(isinstance(other,[_b_.list,_b_.tuple])){var res=[]
+var $temp=other.slice(0,other.length)
+for(var i=0;i<val;i++)res=res.concat($temp)
+if(isinstance(other,_b_.tuple))res=_b_.tuple(res)
+return res}
+if(hasattr(other,'__rmul__'))return getattr(other,'__rmul__')(self)
+$err("*",other)}
+$IntDict.__name__='int'
+$IntDict.__neg__=function(self){return -self}
+$IntDict.__new__=function(cls){if(cls===undefined){throw _b_.TypeError('int.__new__(): not enough arguments')}
+return{__class__:cls.$dict}}
+$IntDict.__pos__=function(self){return self}
+$IntDict.__pow__=function(self,other){if(isinstance(other,int)){switch(other.valueOf()){case 0:
+return int(1)
+case 1:
+return int(self.valueOf())}
+var res=Math.pow(self.valueOf(),other.valueOf())
+if(!isFinite(res)){return res}
+if(res>$B.min_int && res<$B.max_int){return res}
+else{return int($B.LongInt.$dict.__pow__($B.LongInt(self),$B.LongInt(other)))}}
+if(isinstance(other,_b_.float)){if(self>=0){return new Number(Math.pow(self,other.valueOf()))}
+else{
+return _b_.complex.$dict.__pow__(_b_.complex(self,0),other)}}else if(isinstance(other,_b_.complex)){var img=other.imag,preal=Math.pow(self,other.real),ln=Math.log(self)
+return _b_.complex(preal*Math.cos(ln),preal*Math.sin(ln))}
+if(hasattr(other,'__rpow__'))return getattr(other,'__rpow__')(self)
+$err("**",other)}
+$IntDict.__repr__=function(self){if(self===int)return "<class 'int'>"
+return self.toString()}
+$IntDict.__rshift__=function(self,other){if(isinstance(other,int)){return int($B.LongInt.$dict.__rshift__($B.LongInt(self),$B.LongInt(other)))}
+var rrshift=getattr(other,'__rrshift__',null)
+if(rrshift!==null){return rrshift(self)}
+$err('>>',other)}
+$IntDict.__setattr__=function(self,attr,value){if(typeof self=="number"){if($IntDict[attr]===undefined){throw _b_.AttributeError("'int' object has no attribute '"+attr+"'")}else{throw _b_.AttributeError("'int' object attribute '"+attr+"' is read-only")}}
+self[attr]=value
+return $N}
+$IntDict.__str__=$IntDict.__repr__
+$IntDict.__truediv__=function(self,other){if(isinstance(other,int)){if(other==0)throw ZeroDivisionError('division by zero')
+if(other.__class__==$B.LongInt.$dict){return new Number(self/parseInt(other.value))}
+return new Number(self/other)}
+if(isinstance(other,_b_.float)){if(!other.valueOf())throw ZeroDivisionError('division by zero')
+return new Number(self/other)}
+if(isinstance(other,_b_.complex)){var cmod=other.real*other.real+other.imag*other.imag
+if(cmod==0)throw ZeroDivisionError('division by zero')
+return _b_.complex(self*other.real/cmod,-self*other.imag/cmod)}
+if(hasattr(other,'__rtruediv__'))return getattr(other,'__rtruediv__')(self)
+$err("/",other)}
+$IntDict.bit_length=function(self){s=bin(self)
+s=getattr(s,'lstrip')('-0b')
+return s.length }
+$IntDict.numerator=function(self){return self}
+$IntDict.denominator=function(self){return int(1)}
+$IntDict.imag=function(self){return int(0)}
+$IntDict.real=function(self){return self}
+$B.max_int32=(1<<30)* 2 - 1
+$B.min_int32=- $B.max_int32
+var $op_func=function(self,other){if(isinstance(other,int)){if(other.__class__===$B.LongInt.$dict){return $B.LongInt.$dict.__sub__($B.LongInt(self),$B.LongInt(other))}
+if(self > $B.max_int32 ||self < $B.min_int32 ||
+other > $B.max_int32 ||other < $B.min_int32){return $B.LongInt.$dict.__sub__($B.LongInt(self),$B.LongInt(other))}
+return self-other}
+if(isinstance(other,_b_.bool))return self-other
+if(hasattr(other,'__rsub__'))return getattr(other,'__rsub__')(self)
+$err("-",other)}
+$op_func +='' 
+var $ops={'&':'and','|':'or','^':'xor'}
+for(var $op in $ops){var opf=$op_func.replace(/-/gm,$op)
+opf=opf.replace(new RegExp('sub','gm'),$ops[$op])
+eval('$IntDict.__'+$ops[$op]+'__ = '+opf)}
+var $op_func=function(self,other){if(isinstance(other,int)){if(typeof other=='number'){var res=self.valueOf()-other.valueOf()
+if(res>=$B.min_int && res<=$B.max_int){return res}
+else{return $B.LongInt.$dict.__sub__($B.LongInt(self),$B.LongInt(other))}}else if(typeof other=="boolean"){return other ? self-1 : self}else{return $B.LongInt.$dict.__sub__($B.LongInt(self),$B.LongInt(other))}}
+if(isinstance(other,_b_.float)){return new Number(self-other)}
+if(isinstance(other,_b_.complex)){return _b_.complex(self-other.real,-other.imag)}
+if(isinstance(other,_b_.bool)){var bool_value=0;
+if(other.valueOf())bool_value=1;
+return self-bool_value}
+if(isinstance(other,_b_.complex)){return _b_.complex(self.valueOf()- other.real,other.imag)}
+if(hasattr(other,'__rsub__'))return getattr(other,'__rsub__')(self)
+throw $err('-',other)}
+$op_func +='' 
+var $ops={'+':'add','-':'sub'}
+for(var $op in $ops){var opf=$op_func.replace(/-/gm,$op)
+opf=opf.replace(new RegExp('sub','gm'),$ops[$op])
+eval('$IntDict.__'+$ops[$op]+'__ = '+opf)}
+var $comp_func=function(self,other){if(other.__class__===$B.LongInt.$dict)return $B.LongInt.$dict.__gt__($B.LongInt(self),other)
+if(isinstance(other,int))return self.valueOf()> other.valueOf()
+if(isinstance(other,_b_.float))return self.valueOf()> other.valueOf()
+if(isinstance(other,_b_.bool)){return self.valueOf()> _b_.bool.$dict.__hash__(other)}
+if(hasattr(other,'__int__')||hasattr(other,'__index__')){return $IntDict.__gt__(self,$B.$GetInt(other))}
+var inv_op=getattr(other,'__le__',null)
+if(inv_op !==null){return inv_op(self)}
+throw _b_.TypeError(
+"unorderable types: int() > "+$B.get_class(other).__name__+"()")}
+$comp_func +='' 
+for(var $op in $B.$comps){eval("$IntDict.__"+$B.$comps[$op]+'__ = '+
+$comp_func.replace(/>/gm,$op).
+replace(/__gt__/gm,'__'+$B.$comps[$op]+'__').
+replace(/__le__/,'__'+$B.$inv_comps[$op]+'__'))}
+$B.make_rmethods($IntDict)
+var $valid_digits=function(base){var digits=''
+if(base===0)return '0'
+if(base < 10){for(var i=0;i < base;i++)digits+=String.fromCharCode(i+48)
+return digits}
+var digits='0123456789'
+for(var i=10;i < base;i++)digits+=String.fromCharCode(i+55)
+return digits}
+var int=function(value,base){
+if(value===undefined){return 0}
+if(typeof value=='number' && 
+(base===undefined ||base==10)){return parseInt(value)}
+if(base!==undefined){if(!isinstance(value,[_b_.str,_b_.bytes,_b_.bytearray])){throw TypeError("int() can't convert non-string with explicit base")}}
+if(isinstance(value,_b_.complex)){throw TypeError("can't convert complex to int")}
+var $ns=$B.args('int',2,{x:null,base:null},['x','base'],arguments,{'base':10},'null','null')
+var value=$ns['x']
+var base=$ns['base']
+if(isinstance(value,_b_.float)&& base===10){if(value<$B.min_int ||value>$B.max_int){return $B.LongInt.$dict.$from_float(value)}
+else{return value>0 ? Math.floor(value): Math.ceil(value)}}
+if(!(base >=2 && base <=36)){
+if(base !=0)throw _b_.ValueError("invalid base")}
+if(typeof value=='number'){if(base==10){if(value < $B.min_int ||value > $B.max_int)return $B.LongInt(value)
+return value}else if(value.toString().search('e')>-1){
+throw _b_.OverflowError("can't convert to base "+base)}else{var res=parseInt(value,base)
+if(res < $B.min_int ||res > $B.max_int)return $B.LongInt(value,base)
+return res}}
+if(value===true)return Number(1)
+if(value===false)return Number(0)
+if(value.__class__===$B.LongInt.$dict){var z=parseInt(value.value)
+if(z>$B.min_int && z<$B.max_int){return z}
+else{return value}}
+base=$B.$GetInt(base)
+if(isinstance(value,_b_.str))value=value.valueOf()
+if(typeof value=="string"){var _value=value.trim()
+if(_value.length==2 && base==0 &&(_value=='0b' ||_value=='0o' ||_value=='0x')){throw _b_.ValueError('invalid value')}
+if(_value.length >2){var _pre=_value.substr(0,2).toUpperCase()
+if(base==0){if(_pre=='0B')base=2
+if(_pre=='0O')base=8
+if(_pre=='0X')base=16}
+if(_pre=='0B' ||_pre=='0O' ||_pre=='0X'){_value=_value.substr(2)}}
+var _digits=$valid_digits(base)
+var _re=new RegExp('^[+-]?['+_digits+']+$','i')
+if(!_re.test(_value)){throw _b_.ValueError(
+"invalid literal for int() with base "+base +": '"+_b_.str(value)+"'")}
+if(base <=10 && !isFinite(value)){throw _b_.ValueError(
+"invalid literal for int() with base "+base +": '"+_b_.str(value)+"'")}
+var res=parseInt(_value,base)
+if(res < $B.min_int ||res > $B.max_int)return $B.LongInt(_value,base)
+return res}
+if(isinstance(value,[_b_.bytes,_b_.bytearray])){var _digits=$valid_digits(base)
+for(var i=0;i<value.source.length;i++){if(_digits.indexOf(String.fromCharCode(value.source[i]))==-1){throw _b_.ValueError("invalid literal for int() with base "+
+base +": "+_b_.repr(value))}}
+return Number(parseInt(getattr(value,'decode')('latin-1'),base))}
+if(hasattr(value,'__int__'))return getattr(value,'__int__')()
+if(hasattr(value,'__index__'))return getattr(value,'__index__')()
+if(hasattr(value,'__trunc__')){var res=getattr(value,'__trunc__')(),int_func=_b_.getattr(res,'__int__',null)
+if(int_func===null){throw TypeError('__trunc__ returned non-Integral (type '+
+$B.get_class(res).__name__+')')}
+var res=int_func()
+if(isinstance(res,int)){return res}
+throw TypeError('__trunc__ returned non-Integral (type '+
+$B.get_class(res).__name__+')')}
+throw _b_.ValueError(
+"invalid literal for int() with base "+base +": '"+_b_.str(value)+"'")}
+int.$dict=$IntDict
+int.__class__=$B.$factory
+$IntDict.$factory=int
+_b_.int=int})(__BRYTHON__)
+;(function($B){
+eval($B.InjectBuiltins())
+var $LongIntDict={__class__:$B.$type,__name__:'int'}
+function add_pos(v1,v2){
+var res='',carry=0,iself=v1.length,sv=0,x
+for(var i=v2.length-1;i>=0;i--){iself--
+if(iself<0){sv=0}else{sv=parseInt(v1.charAt(iself))}
+x=(carry+sv+parseInt(v2.charAt(i))).toString()
+if(x.length==2){res=x.charAt(1)+res;carry=parseInt(x.charAt(0))}
+else{res=x+res;carry=0}}
+while(iself>0){iself--
+x=(carry+parseInt(v1.charAt(iself))).toString()
+if(x.length==2){res=x.charAt(1)+res;carry=parseInt(x.charAt(0))}
+else{res=x+res;carry=0}}
+if(carry){res=carry+res}
+return{__class__:$LongIntDict,value:res,pos:true}}
+function check_shift(shift){
+if(!isinstance(shift,LongInt)){throw TypeError("shift must be int, not '"+
+$B.get_class(shift).__name__+"'")}
+if(!shift.pos){throw ValueError("negative shift count")}}
+function clone(obj){
+var obj1={}
+for(var attr in obj){obj1[attr]=obj[attr]}
+return obj1}
+function comp_pos(v1,v2){
+if(v1.length>v2.length){return 1}
+else if(v1.length<v2.length){return -1}
+else{if(v1>v2){return 1}
+else if(v1<v2){return -1}}
+return 0}
+function divmod_pos(v1,v2){
+var v1_init=v1,quotient,mod
+if(comp_pos(v1,v2)==-1){
+quotient='0'
+mod=LongInt(v1)}else if(v2==v1){
+quotient='1';
+mod=LongInt('0')}else{var quotient='',v1_init=v1
+var left=v1.substr(0,v2.length)
+if(v1<v2){left=v1.substr(0,v2.length+1)}
+var right=v1.substr(left.length)
+var mv2={}
+while(true){
+var candidate=Math.floor(parseInt(left)/parseInt(v2))+''
+if(mv2[candidate]===undefined){mv2[candidate]=mul_pos(v2,candidate).value}
+if(comp_pos(left,mv2[candidate])==-1){
+candidate--
+if(mv2[candidate]===undefined){mv2[candidate]=mul_pos(v2,candidate).value}}
+quotient +=candidate
+left=sub_pos(left,mv2[candidate]).value
+if(right.length==0){break}
+left +=right.charAt(0)
+right=right.substr(1)}
+mod=sub_pos(v1,mul_pos(quotient,v2).value)}
+return[LongInt(quotient),mod]}
+function split_chunks(s,size){var nb=Math.ceil(s.length/size),chunks=[],len=s.length
+for(var i=0;i<nb;i++){var pos=len-size*(i+1)
+if(pos<0){size +=pos;pos=0}
+chunks.push(parseInt(s.substr(pos,size)))}
+return chunks}
+function mul_pos(x,y){
+var chunk_size=6
+var cx=split_chunks(x,chunk_size),cy=split_chunks(y,chunk_size)
+var products={},len=cx.length+cy.length
+for(var i=0;i<len-1;i++){products[i]=0}
+for(var i=0;i<cx.length;i++){for(var j=0;j<cy.length;j++){products[i+j]+=cx[i]*cy[j]}}
+var nb=len-1,pos
+for(var i=0;i<len-1;i++){var chunks=split_chunks(products[i].toString(),chunk_size)
+for(var j=1;j<chunks.length;j++){pos=i+j
+if(products[pos]===undefined){products[pos]=parseInt(chunks[j]);nb=pos}
+else{products[pos]+=parseInt(chunks[j])}}
+products[i]=chunks[0]}
+var result='',i=0,s
+while(products[i]!==undefined){s=products[i].toString()
+if(products[i+1]!==undefined){s='0'.repeat(chunk_size-s.length)+s}
+result=s+result;
+i++}
+return LongInt(result)}
+function sub_pos(v1,v2){
+var res='',carry=0,i1=v1.length,sv=0,x
+for(var i=v2.length-1;i>=0;i--){i1--
+sv=parseInt(v1.charAt(i1))
+x=(sv-carry-parseInt(v2.charAt(i)))
+if(x<0){res=(10+x)+res;carry=1}
+else{res=x+res;carry=0}}
+while(i1>0){i1--
+x=(parseInt(v1.charAt(i1))-carry)
+if(x<0){res=(10+x)+res;carry=1}
+else{res=x+res;carry=0}}
+while(res.charAt(0)=='0' && res.length>1){res=res.substr(1)}
+return{__class__:$LongIntDict,value:res,pos:true}}
+$LongIntDict.$from_float=function(value){var s=Math.abs(value).toString(),v=s
+if(s.search('e')>-1){var t=/-?(\d)(\.\d+)?e([+-])(\d*)/.exec(s),n1=t[1],n2=t[2],pos=t[3],exp=t[4]
+if(pos=='+'){if(n2===undefined){v=n1+'0'.repeat(exp-1)}else{v=n1+n2+'0'.repeat(exp-1-n2.length)}}}
+return{__class__:$LongIntDict,value: v,pos: value >=0}}
+$LongIntDict.__abs__=function(self){return{__class__:$LongIntDict,value: self.value,pos:true}}
+$LongIntDict.__add__=function(self,other){if(isinstance(other,_b_.float)){return _b_.float(parseInt(self.value)+other.value)}
+if(typeof other=='number')other=LongInt(_b_.str(other))
+var res
+if(self.pos&&other.pos){
+return add_pos(self.value,other.value)}else if(!self.pos&&!other.pos){
+res=add_pos(self.value,other.value)
+res.pos=false
+return intOrLong(res)}else if(self.pos && !other.pos){
+switch(comp_pos(self.value,other.value)){case 1:
+res=sub_pos(self.value,other.value)
+break
+case 0:
+res={__class__:$LongIntDict,value:0,pos:true}
+break
+case -1:
+res=sub_pos(other.value,self.value)
+res.pos=false
+break}
+return intOrLong(res)}else{
+switch(comp_pos(self.value,other.value)){case 1:
+res=sub_pos(self.value,other.value)
+res.pos=false
+break
+case 0:
+res={__class__:$LongIntDict,value:0,pos:true}
+break
+case -1:
+res=sub_pos(other.value,self.value)
+break}
+return intOrLong(res)}}
+$LongIntDict.__and__=function(self,other){if(typeof other=='number')other=LongInt(_b_.str(other))
+var v1=$LongIntDict.__index__(self)
+var v2=$LongIntDict.__index__(other)
+if(v1.length<v2.length){var temp=v2;v2=v1;v1=temp}
+var start=v1.length-v2.length
+var res=''
+for(var i=0;i<v2.length;i++){if(v1.charAt(start+i)=='1' && v2.charAt(i)=='1'){res +='1'}
+else{res +='0'}}
+return intOrLong(LongInt(res,2))}
+$LongIntDict.__divmod__=function(self,other){if(typeof other=='number')other=LongInt(_b_.str(other))
+var dm=divmod_pos(self.value,other.value)
+if(self.pos!==other.pos){if(dm[0].value!='0'){dm[0].pos=false}
+if(dm[1].value!='0'){
+dm[0]=$LongIntDict.__sub__(dm[0],LongInt('1'))
+dm[1]=$LongIntDict.__add__(dm[1],LongInt('1'))}}
+return[intOrLong(dm[0]),intOrLong(dm[1])]}
+$LongIntDict.__eq__=function(self,other){if(typeof other=='number')other=LongInt(_b_.str(other))
+return self.value==other.value && self.pos==other.pos}
+$LongIntDict.__float__=function(self){return new Number(parseFloat(self.value))}
+$LongIntDict.__floordiv__=function(self,other){if(isinstance(other,_b_.float)){return _b_.float(parseInt(self.value)/other)}
+if(typeof other=='number')other=LongInt(_b_.str(other))
+return intOrLong($LongIntDict.__divmod__(self,other)[0])}
+$LongIntDict.__ge__=function(self,other){if(typeof other=='number')other=LongInt(_b_.str(other))
+if(self.pos !=other.pos){return !other.pos}
+if(self.value.length>other.value.length){return self.pos}
+else if(self.value.length<other.value.length){return !self.pos}
+else{return self.pos ? self.value >=other.value : self.value <=other.value}}
+$LongIntDict.__gt__=function(self,other){return !$LongIntDict.__le__(self,other)}
+$LongIntDict.__index__=function(self){
+var res='',pos=self.value.length,temp=self.value,d
+while(true){d=divmod_pos(temp,'2')
+res=d[1].value + res
+temp=d[0].value
+if(temp=='0'){break}}
+return intOrLong(res)}
+$LongIntDict.__invert__=function(self){return $LongIntDict.__sub__(LongInt('-1'),self)}
+$LongIntDict.__le__=function(self,other){if(typeof other=='number')other=LongInt(_b_.str(other))
+if(self.pos !==other.pos){return !self.pos}
+if(self.value.length>other.value.length){return !self.pos}
+else if(self.value.length<other.value.length){return self.pos}
+else{return self.pos ? self.value <=other.value : self.value >=other.value}}
+$LongIntDict.__lt__=function(self,other){return !$LongIntDict.__ge__(self,other)}
+$LongIntDict.__lshift__=function(self,shift){var is_long=shift.__class__==$LongIntDict
+if(is_long){var shift_value=parseInt(shift.value)
+if(shift_value<0){throw _b_.ValueError('negative shift count')}
+if(shift_value < $B.max_int){shift_safe=true;shift=shift_value}}
+if(shift_safe){if(shift_value==0){return self}}else{shift=LongInt(shift)
+if(shift.value=='0'){return self}}
+var res=self.value
+while(true){var x,carry=0,res1=''
+for(var i=res.length-1;i>=0;i--){x=(carry+parseInt(res.charAt(i))*2).toString()
+if(x.length==2){res1=x.charAt(1)+res1;carry=parseInt(x.charAt(0))}
+else{res1=x+res1;carry=0}}
+if(carry){res1=carry+res1}
+res=res1
+if(shift_safe){shift--
+if(shift==0){break}}else{shift=sub_pos(shift.value,'1')
+if(shift.value=='0'){break}}}
+return intOrLong({__class__:$LongIntDict,value:res,pos:self.pos})}
+$LongIntDict.__mod__=function(self,other){return intOrLong($LongIntDict.__divmod__(self,other)[1])}
+$LongIntDict.__mro__=[$LongIntDict,_b_.int.$dict,_b_.object.$dict]
+$LongIntDict.__mul__=function(self,other){switch(self){case Number.NEGATIVE_INFINITY:
+case Number.POSITIVE_INFINITY:
+var eq=_b_.getattr(other,'__eq__')
+if(eq(0)){return NaN}
+else if(_b_.getattr(other,'__gt__')(0)){return self}
+else{return -self}}
+if(isinstance(other,_b_.float)){return _b_.float(parseInt(self.value)*other)}
+if(typeof other=='number')other=LongInt(_b_.str(other))
+var res=mul_pos(self.value,other.value)
+if(self.pos==other.pos){return intOrLong(res)}
+res.pos=false
+return intOrLong(res)}
+$LongIntDict.__neg__=function(obj){return{__class__:$LongIntDict,value:obj.value,pos:!obj.pos}}
+$LongIntDict.__or__=function(self,other){other=LongInt(other)
+var v1=$LongIntDict.__index__(self)
+var v2=$LongIntDict.__index__(other)
+if(v1.length<v2.length){var temp=v2;v2=v1;v1=temp}
+var start=v1.length-v2.length
+var res=v1.substr(0,start)
+for(var i=0;i<v2.length;i++){if(v1.charAt(start+i)=='1' ||v2.charAt(i)=='1'){res +='1'}
+else{res +='0'}}
+return intOrLong(LongInt(res,2))}
+$LongIntDict.__pos__=function(self){return self}
+$LongIntDict.__pow__=function(self,power){if(typeof power=="number"){power=LongInt(_b_.str(power))}else if(!isinstance(power,LongInt)){var msg="power must be a LongDict, not '"
+throw TypeError(msg+$B.get_class(power).__name__+"'")}
+if(!power.pos){if(self.value=='1'){return self}
+return LongInt('0')}else if(power.value=='0'){return LongInt('1')}
+var res={__class__:$LongIntDict,value:self.value,pos:self.pos}
+var pow=power.value
+while(true){pow=sub_pos(pow,'1').value
+if(pow=='0'){break}
+res=LongInt($LongIntDict.__mul__(res,self))}
+return intOrLong(res)}
+$LongIntDict.__rshift__=function(self,shift){shift=LongInt(shift)
+if(shift.value=='0'){return self}
+var res=self.value
+while(true){res=divmod_pos(res,'2')[0].value
+if(res.value=='0'){break}
+shift=sub_pos(shift.value,'1')
+if(shift.value=='0'){break}}
+return intOrLong({__class__:$LongIntDict,value:res,pos:self.pos})}
+$LongIntDict.__str__=$LongIntDict.__repr__=function(self){var res=""
+if(!self.pos){res +='-'}
+return res+self.value}
+$LongIntDict.__sub__=function(self,other){if(isinstance(other,_b_.float)){return _b_.float(parseInt(self.value)-other.value)}
+if(typeof other=='number')other=LongInt(_b_.str(other))
+var res
+if(self.pos && other.pos){switch(comp_pos(self.value,other.value)){case 1:
+res=sub_pos(self.value,other.value)
+break
+case 0:
+res={__class__:$LongIntDict,value:'0',pos:true}
+break
+case -1:
+res=sub_pos(other.value,self.value)
+res.pos=false
+break}
+return intOrLong(res)}else if(!self.pos && !other.pos){switch(comp_pos(self.value,other.value)){case 1:
+res=sub_pos(self.value,other.value)
+res.pos=false
+break
+case 0:
+res={__class__:$LongIntDict,value:'0',pos:true}
+break
+case -1:
+res=sub_pos(other.value,self.value)
+break}
+return intOrLong(res)}else if(self.pos && !other.pos){return intOrLong(add_pos(self.value,other.value))}else{res=add_pos(self.value,other.value)
+res.pos=false
+return intOrLong(res)}}
+$LongIntDict.__truediv__=function(self,other){if(isinstance(other,LongInt)){return _b_.float(parseInt(self.value)/parseInt(other.value))}else if(isinstance(other,_b_.int)){return _b_.float(parseInt(self.value)/other)}else if(isinstance(other,_b_.float)){return _b_.float(parseInt(self.value)/other)}else{throw TypeError("unsupported operand type(s) for /: 'int' and '"+
+$B.get_class(other).__name__+"'")}}
+$LongIntDict.__xor__=function(self,other){other=LongInt(other)
+var v1=$LongIntDict.__index__(self)
+var v2=$LongIntDict.__index__(other)
+if(v1.length<v2.length){var temp=v2;v2=v1;v1=temp}
+var start=v1.length-v2.length
+var res=v1.substr(0,start)
+for(var i=0;i<v2.length;i++){if(v1.charAt(start+i)=='1' && v2.charAt(i)=='0'){res +='1'}
+else if(v1.charAt(start+i)=='0' && v2.charAt(i)=='1'){res +='1'}
+else{res +='0'}}
+return intOrLong(LongInt(res,2))}
+$LongIntDict.to_base=function(self,base){
+var res='',v=self.value
+while(v>0){var dm=divmod_pos(v,base.toString())
+res=parseInt(dm[1].value).toString(base)+res
+v=dm[0].value
+if(v==0){break}}
+return res}
+function digits(base){
+var is_digits={}
+for(var i=0;i<base;i++){if(i==10){break}
+is_digits[i]=true}
+if(base>10){
+for(var i=0;i<base-10;i++){is_digits[String.fromCharCode(65+i)]=true
+is_digits[String.fromCharCode(97+i)]=true}}
+return is_digits}
+var MAX_SAFE_INTEGER=Math.pow(2,53)-1;
+var MIN_SAFE_INTEGER=-MAX_SAFE_INTEGER;
+function isSafeInteger(n){return(typeof n==='number' &&
+Math.round(n)===n &&
+MIN_SAFE_INTEGER <=n &&
+n <=MAX_SAFE_INTEGER);}
+function intOrLong(long){
+var v=parseInt(long.value)*(long.pos ? 1 : -1)
+if(v>MIN_SAFE_INTEGER && v<MAX_SAFE_INTEGER){return v}
+return long}
+function LongInt(value,base){if(arguments.length>2){throw _b_.TypeError("LongInt takes at most 2 arguments ("+
+arguments.length+" given)")}
+if(base===undefined){base=10}
+else if(!isinstance(base,int)){throw TypeError("'"+$B.get_class(base).__name__+"' object cannot be interpreted as an integer")}
+if(base<0 ||base==1 ||base>36){throw ValueError("LongInt() base must be >= 2 and <= 36")}
+if(isinstance(value,_b_.float)){if(value===Number.POSITIVE_INFINITY ||value===Number.NEGATIVE_INFINITY){return value}
+if(value>=0){value=new Number(Math.round(value.value))}
+else{value=new Number(Math.ceil(value.value))}}else if(isinstance(value,_b_.bool)){if(value.valueOf())return int(1)
+return int(0)}
+if(typeof value=='number'){if(isSafeInteger(value)){value=value.toString()}
+else if(value.constructor==Number){console.log('big number',value);value=value.toString()}
+else{console.log('wrong value',value);throw ValueError("argument of long_int is not a safe integer")}}else if(value.__class__===$LongIntDict){return value}
+else if(isinstance(value,_b_.bool)){value=_b_.bool.$dict.__int__(value)+''}
+else if(typeof value!='string'){throw ValueError("argument of long_int must be a string, not "+
+$B.get_class(value).__name__)}
+var has_prefix=false,pos=true,start=0
+while(value.charAt(0)==' ' && value.length){value=value.substr(1)}
+while(value.charAt(value.length-1)==' ' && value.length){value=value.substr(0,value.length-1)}
+if(value.charAt(0)=='+'){has_prefix=true}
+else if(value.charAt(0)=='-'){has_prefix=true;pos=false}
+if(has_prefix){
+if(value.length==1){
+throw ValueError('LongInt argument is not a valid number: "'+value+'"')}else{value=value.substr(1)}}
+while(start<value.length-1 && value.charAt(start)=='0'){start++}
+value=value.substr(start)
+var is_digits=digits(base),point=-1
+for(var i=0;i<value.length;i++){if(value.charAt(i)=='.' && point==-1){point=i}
+else if(!is_digits[value.charAt(i)]){throw ValueError('LongInt argument is not a valid number: "'+value+'"')}}
+if(point!=-1){value=value.substr(0,point)}
+if(base!=10){
+var coef='1',v10=LongInt(0),pos=value.length,digit_base10
+while(pos--){digit_base10=parseInt(value.charAt(pos),base).toString()
+digit_by_coef=mul_pos(coef,digit_base10).value
+v10=add_pos(v10.value,digit_by_coef)
+coef=mul_pos(coef,base.toString()).value}
+return v10}
+return{__class__:$LongIntDict,value:value,pos:pos}}
+LongInt.__class__=$B.$factory
+LongInt.$dict=$LongIntDict
+$LongIntDict.$factory=LongInt
+$B.LongInt=LongInt})(__BRYTHON__)
+;(function($B){eval($B.InjectBuiltins())
+var $ObjectDict=_b_.object.$dict
+function $UnsupportedOpType(op,class1,class2){throw _b_.TypeError("unsupported operand type(s) for "+op+": '"+class1+"' and '"+class2+"'")}
+var $ComplexDict={__class__:$B.$type,__dir__:$ObjectDict.__dir__,__name__:'complex',$native:true,descriptors:{real:true,imag:true}}
+$ComplexDict.__abs__=function(self){return Math.sqrt(Math.pow(self.real,2)+Math.pow(self.imag,2))}
+$ComplexDict.__bool__=function(self){return new Boolean(self.real ||self.imag)}
+$ComplexDict.__class__=$B.$type
+$ComplexDict.__eq__=function(self,other){if(isinstance(other,complex))return self.real==other.real && self.imag==other.imag
+if(isinstance(other,_b_.int)){if(self.imag !=0)return False
+return self.real==other.valueOf()}
+if(isinstance(other,_b_.float)){if(self.imag !=0)return False
+return self.real==other.value}
+$UnsupportedOpType("==","complex",$B.get_class(other))}
+$ComplexDict.__floordiv__=function(self,other){$UnsupportedOpType("//","complex",$B.get_class(other))}
+$ComplexDict.__hash__=function(self){
+if(self===undefined){return $ComplexDict.__hashvalue__ ||$B.$py_next_hash--}
+return self.imag*1000003+self.real}
+$ComplexDict.__init__=function(self,real,imag){self.toString=function(){return '('+real+'+'+imag+'j)'}}
+$ComplexDict.__invert__=function(self){return ~self}
+$ComplexDict.__mod__=function(self,other){throw _b_.TypeError("TypeError: can't mod complex numbers.")}
+$ComplexDict.__mro__=[$ComplexDict,$ObjectDict]
+$ComplexDict.__mul__=function(self,other){if(isinstance(other,complex))
+return complex(self.real*other.real-self.imag*other.imag,self.imag*other.real + self.real*other.imag)
+if(isinstance(other,_b_.int))
+return complex(self.real*other.valueOf(),self.imag*other.valueOf())
+if(isinstance(other,_b_.float))
+return complex(self.real*other.value,self.imag*other.value)
+if(isinstance(other,_b_.bool)){if(other.valueOf())return self
+return complex(0)}
+$UnsupportedOpType("*",complex,other)}
+$ComplexDict.__name__='complex'
+$ComplexDict.__ne__=function(self,other){return !$ComplexDict.__eq__(self,other)}
+$ComplexDict.__neg__=function(self){return complex(-self.real,-self.imag)}
+$ComplexDict.__new__=function(cls){if(cls===undefined)throw _b_.TypeError('complex.__new__(): not enough arguments')
+return{__class__:cls.$dict}}
+$ComplexDict.__pos__=function(self){return self}
+function complex2expo(cx){var norm=Math.sqrt((cx.real*cx.real)+(cx.imag*cx.imag)),sin=cx.imag/norm,cos=cx.real/norm,angle
+if(cos==0){angle=sin==1 ? Math.PI/2 : 3*Math.PI/2}
+else if(sin==0){angle=cos==1 ? 0 : Math.PI}
+else{angle=Math.atan(sin/cos)}
+return{norm: norm,angle: angle}}
+$ComplexDict.__pow__=function(self,other){
+var exp=complex2expo(self),angle=exp.angle,res=Math.pow(exp.norm,other)
+if(_b_.isinstance(other,[_b_.int,_b_.float])){return complex(res*Math.cos(angle*other),res*Math.sin(angle*other))}else if(_b_.isinstance(other,complex)){
+var x=other.real,y=other.imag
+var pw=Math.pow(exp.norm,x)*Math.pow(Math.E,-y*angle),theta=y*Math.log(exp.norm)-x*angle
+return complex(pw*Math.cos(theta),pw*Math.sin(theta))}else{throw _b_.TypeError("unsupported operand type(s) for ** or pow(): "+
+"'complex' and '"+$B.get_class(other).__name__+"'")}}
+$ComplexDict.__str__=$ComplexDict.__repr__=function(self){if(self.real==0)return self.imag+'j'
+if(self.imag>=0)return '('+self.real+'+'+self.imag+'j)'
+return '('+self.real+'-'+(-self.imag)+'j)'}
+$ComplexDict.__sqrt__=function(self){if(self.imag==0)return complex(Math.sqrt(self.real))
+var r=self.real,i=self.imag
+var _sqrt=Math.sqrt(r*r+i*i)
+var _a=Math.sqrt((r + sqrt)/2)
+var _b=Number.sign(i)* Math.sqrt((-r + sqrt)/2)
+return complex(_a,_b)}
+$ComplexDict.__truediv__=function(self,other){if(isinstance(other,complex)){if(other.real==0 && other.imag==0){throw ZeroDivisionError('division by zero')}
+var _num=self.real*other.real + self.imag*other.imag
+var _div=other.real*other.real + other.imag*other.imag
+var _num2=self.imag*other.real - self.real*other.imag
+return complex(_num/_div,_num2/_div)}
+if(isinstance(other,_b_.int)){if(!other.valueOf())throw ZeroDivisionError('division by zero')
+return $ComplexDict.__truediv__(self,complex(other.valueOf()))}
+if(isinstance(other,_b_.float)){if(!other.value)throw ZeroDivisionError('division by zero')
+return $ComplexDict.__truediv__(self,complex(other.value))}
+$UnsupportedOpType("//","complex",other.__class__)}
+var $op_func=function(self,other){throw _b_.TypeError("TypeError: unsupported operand type(s) for -: 'complex' and '" + 
+$B.get_class(other).__name__+"'")}
+$op_func +='' 
+var $ops={'&':'and','|':'ior','<<':'lshift','>>':'rshift','^':'xor'}
+for(var $op in $ops){eval('$ComplexDict.__'+$ops[$op]+'__ = '+$op_func.replace(/-/gm,$op))}
+$ComplexDict.__ior__=$ComplexDict.__or__
+var $op_func=function(self,other){if(isinstance(other,complex))return complex(self.real-other.real,self.imag-other.imag)
+if(isinstance(other,_b_.int))return complex($B.sub(self.real,other.valueOf()),self.imag)
+if(isinstance(other,_b_.float))return complex(self.real - other.value,self.imag)
+if(isinstance(other,_b_.bool)){var bool_value=0;
+if(other.valueOf())bool_value=1;
+return complex(self.real - bool_value,self.imag)}
+throw _b_.TypeError("unsupported operand type(s) for -: "+self.__repr__()+
+" and '"+$B.get_class(other).__name__+"'")}
+$ComplexDict.__sub__=$op_func
+$op_func +='' 
+$op_func=$op_func.replace(/-/gm,'+').replace(/sub/gm,'add')
+eval('$ComplexDict.__add__ = '+$op_func)
+var $comp_func=function(self,other){throw _b_.TypeError("TypeError: unorderable types: complex() > " + 
+$B.get_class(other).__name__ + "()")}
+$comp_func +='' 
+for(var $op in $B.$comps){eval("$ComplexDict.__"+$B.$comps[$op]+'__ = '+$comp_func.replace(/>/gm,$op))}
+$B.make_rmethods($ComplexDict)
+$ComplexDict.real=function(self){return new Number(self.real)}
+$ComplexDict.imag=function(self){return new Number(self.imag)}
+var complex_re=/^(\d*\.?\d*)([\+\-]?)(\d*\.?\d*)(j?)$/
+var complex=function(real,imag){if(typeof real=='string'){if(imag!==undefined){throw _b_.TypeError("complex() can't take second arg if first is a string")}
+var parts=complex_re.exec(real)
+if(parts===null){throw _b_.ValueError("complex() arg is a malformed string")}else if(parts[1]=='.' ||parts[3]=='.'){throw _b_.ValueError("complex() arg is a malformed string")}else if(parts[4]=='j'){if(parts[2]==''){real=0;imag=parseFloat(parts[1])}else{real=parseFloat(parts[1])
+imag=parts[3]=='' ? 1 : parseFloat(parts[3])
+imag=parts[2]=='-' ? -imag : imag}}else{real=parseFloat(parts[1])
+imag=0}}
+var res={__class__:$ComplexDict,real:real ||0,imag:imag ||0}
+res.__repr__=res.__str__=function(){if(real==0)return imag + 'j'
+return '('+real+'+'+imag+'j)'}
+return res}
+complex.$dict=$ComplexDict
+complex.__class__=$B.$factory
+$ComplexDict.$factory=complex
+$B.set_func_names($ComplexDict)
+_b_.complex=complex})(__BRYTHON__)
+;(function($B){eval($B.InjectBuiltins())
+var $ObjectDict=_b_.object.$dict,$N=_b_.None
+function $list(){
+var args=[],pos=0
+for(var i=0,_len_i=arguments.length;i < _len_i;i++){args[pos++]=arguments[i]}
+return new $ListDict(args)}
+var $ListDict={__class__:$B.$type,__name__:'list',$native:true,__dir__:$ObjectDict.__dir__}
+$ListDict.__add__=function(self,other){if($B.get_class(self)!==$B.get_class(other)){throw TypeError('can only concatenate list (not "'+
+$B.get_class(other).__name__+'") to list')}
+var res=self.valueOf().concat(other.valueOf())
+if(isinstance(self,tuple))res=tuple(res)
+return res}
+$ListDict.__contains__=function(self,item){var $=$B.args('__contains__',2,{self:null,item:null},['self','item'],arguments,{},null,null),self=$.self,item=$.item
+var _eq=getattr(item,'__eq__')
+var i=self.length
+while(i--){if(_eq(self[i]))return true}
+return false}
+$ListDict.__delitem__=function(self,arg){if(isinstance(arg,_b_.int)){var pos=arg
+if(arg<0)pos=self.length+pos
+if(pos>=0 && pos<self.length){self.splice(pos,1)
+return $N}
+throw _b_.IndexError('list index out of range')}
+if(isinstance(arg,_b_.slice)){var step=arg.step;if(step===None){step=1}
+var start=arg.start
+if(start===None){start=step>0 ? 0 : self.length}
+var stop=arg.stop
+if(stop===None){stop=step >0 ? self.length : 0}
+if(start<0)start=self.length+start
+if(stop<0)stop=self.length+stop
+var res=[],i=null,pos=0
+if(step>0){if(stop>start){for(var i=start;i<stop;i+=step){if(self[i]!==undefined){res[pos++]=i}}}}else{
+if(stop<start){for(var i=start;i>stop;i+=step){if(self[i]!==undefined){res[pos++]=i}}
+res.reverse()}}
+var i=res.length
+while(i--){
+self.splice(res[i],1)}
+return $N}
+if(hasattr(arg,'__int__')||hasattr(arg,'__index__')){$ListDict.__delitem__(self,_b_.int(arg))
+return $N}
+throw _b_.TypeError('list indices must be integer, not '+_b_.str(arg.__class__))}
+$ListDict.__eq__=function(self,other){if(isinstance(other,$B.get_class(self).$factory)){if(other.length==self.length){var i=self.length
+while(i--){if(!getattr(self[i],'__eq__')(other[i]))return false}
+return true}}
+return false}
+$ListDict.__getitem__=function(self,arg){var $=$B.args('__getitem__',2,{self:null,key:null},['self','key'],arguments,{},null,null),self=$.self,key=$.key
+var klass=$B.get_class(self).$factory
+if(isinstance(key,_b_.int)){var items=self.valueOf()
+var pos=key
+if(key<0)pos=items.length+pos
+if(pos>=0 && pos<items.length)return items[pos]
+throw _b_.IndexError('list index out of range')}
+if(isinstance(key,_b_.slice)){
+var s=_b_.slice.$dict.$conv_for_seq(key,self.length)
+var res=[],i=null,items=self.valueOf(),pos=0,start=s.start,stop=s.stop,step=s.step
+if(step > 0){if(stop <=start)return res;
+for(var i=start;i<stop;i+=step){res[pos++]=items[i]}
+return klass(res);}else{
+if(stop > start)return res;
+for(var i=start;i>stop;i+=step){res[pos++]=items[i]}
+return klass(res);}}
+if(hasattr(key,'__int__')||hasattr(key,'__index__')){return $ListDict.__getitem__(self,_b_.int(key))}
+throw _b_.TypeError('list indices must be integer, not '+
+$B.get_class(key).__name__)}
+$ListDict.__ge__=function(self,other){if(!isinstance(other,[list,_b_.tuple])){throw _b_.TypeError("unorderable types: list() >= "+
+$B.get_class(other).__name__+'()')}
+var i=0
+while(i<self.length){if(i>=other.length)return true
+if(getattr(self[i],'__eq__')(other[i])){i++}
+else return(getattr(self[i],"__ge__")(other[i]))}
+return other.length==self.length}
+$ListDict.__gt__=function(self,other){if(!isinstance(other,[list,_b_.tuple])){throw _b_.TypeError("unorderable types: list() > "+
+$B.get_class(other).__name__+'()')}
+var i=0
+while(i<self.length){if(i>=other.length)return true
+if(getattr(self[i],'__eq__')(other[i])){i++}
+else return(getattr(self[i],'__gt__')(other[i]))}
+return false}
+$ListDict.__iadd__=function(){var $=$B.args('__iadd__',2,{self:null,x:null},['self','x'],arguments,{},null,null)
+var x=list(iter($.x))
+for(var i=0;i < x.length;i++){$.self.push(x[i])}
+return $.self}
+$ListDict.__imul__=function(){var $=$B.args('__imul__',2,{self:null,x:null},['self','x'],arguments,{},null,null)
+var x=$B.$GetInt($.x),len=$.self.length,pos=len
+if(x==0){$ListDict.clear($.self);return $.self}
+for(var i=1;i < x;i++){for(j=0;j<len;j++){$.self[pos++]=$.self[j]}}
+return $.self}
+$ListDict.__init__=function(self,arg){var len_func=getattr(self,'__len__'),pop_func=getattr(self,'pop')
+while(len_func())pop_func()
+if(arg===undefined)return $N
+var arg=iter(arg)
+var next_func=getattr(arg,'__next__')
+var pos=len_func()
+while(1){try{self[pos++]=next_func()}
+catch(err){if(err.__name__=='StopIteration'){break}
+else{throw err}}}
+return $N}
+var $list_iterator=$B.$iterator_class('list_iterator')
+$ListDict.__iter__=function(self){return $B.$iterator(self,$list_iterator)}
+$ListDict.__le__=function(self,other){return !$ListDict.__gt__(self,other)}
+$ListDict.__len__=function(self){return self.length}
+$ListDict.__lt__=function(self,other){return !$ListDict.__ge__(self,other)}
+$ListDict.__mro__=[$ListDict,$ObjectDict]
+$ListDict.__mul__=function(self,other){if(isinstance(other,_b_.int)){
+var res=[],$temp=self.slice(),len=$temp.length
+for(var i=0;i<other;i++){for(var j=0;j<len;j++){res.push($temp[j])}}
+res.__class__=self.__class__
+return res}
+if(hasattr(other,'__int__')||hasattr(other,'__index__')){return $ListDict.__mul__(self,_b_.int(other))}
+throw _b_.TypeError("can't multiply sequence by non-int of type '"+
+$B.get_class(other).__name__+"'")}
+$ListDict.__ne__=function(self,other){return !$ListDict.__eq__(self,other)}
+$ListDict.__repr__=function(self){if(self===undefined)return "<class 'list'>"
+var _r=[]
+for(var i=0;i<self.length;i++){if(self[i]===self){_r.push('[...]')}
+else{_r.push(_b_.repr(self[i]))}}
+if(self.__class__===$TupleDict){if(self.length==1){return '('+_r[0]+',)'}
+return '('+_r.join(', ')+')'}
+return '['+_r.join(', ')+']'}
+$ListDict.__setitem__=function(){var $=$B.args('__setitem__',3,{self:null,key:null,value:null},['self','key','value'],arguments,{},null,null),self=$.self,arg=$.key,value=$.value
+if(isinstance(arg,_b_.int)){var pos=arg
+if(arg<0)pos=self.length+pos
+if(pos>=0 && pos<self.length){self[pos]=value}
+else{throw _b_.IndexError('list index out of range')}
+return $N}
+if(isinstance(arg,_b_.slice)){var s=_b_.slice.$dict.$conv_for_seq(arg,self.length)
+if(arg.step===null){$B.set_list_slice(self,s.start,s.stop,value)}
+else{$B.set_list_slice_step(self,s.start,s.stop,s.step,value)}
+return $N}
+if(hasattr(arg,'__int__')||hasattr(arg,'__index__')){$ListDict.__setitem__(self,_b_.int(arg),value)
+return $N}
+throw _b_.TypeError('list indices must be integer, not '+arg.__class__.__name__)}
+$ListDict.__str__=$ListDict.__repr__
+$B.make_rmethods($ListDict)
+var _ops=['add','sub']
+$ListDict.append=function(){var $=$B.args('append',2,{self:null,x:null},['self','x'],arguments,{},null,null)
+$.self[$.self.length]=$.x
+return $N}
+$ListDict.clear=function(){var $=$B.args('clear',1,{self:null},['self'],arguments,{},null,null)
+while($.self.length){$.self.pop()}
+return $N}
+$ListDict.copy=function(){var $=$B.args('copy',1,{self:null},['self'],arguments,{},null,null)
+return $.self.slice()}
+$ListDict.count=function(){var $=$B.args('count',2,{self:null,x:null},['self','x'],arguments,{},null,null)
+var res=0
+_eq=getattr($.x,'__eq__')
+var i=$.self.length
+while(i--)if(_eq($.self[i]))res++
+return res}
+$ListDict.extend=function(){var $=$B.args('extend',2,{self:null,t:null},['self','t'],arguments,{},null,null)
+other=list(iter($.t))
+for(var i=0;i<other.length;i++){$.self.push(other[i])}
+return $N}
+$ListDict.index=function(){var $=$B.args('index',4,{self:null,x:null,start:null,stop:null},['self','x','start','stop'],arguments,{start:null,stop:null},null,null),self=$.self,start=$.start,stop=$.stop
+var _eq=getattr($.x,'__eq__')
+if(start===null){start=0}
+else{if(start.__class__===$B.LongInt.$dict){start=parseInt(start.value)*(start.pos ? 1 : -1)}
+if(start<0){start=Math.max(0,start+self.length)}}
+if(stop===null){stop=self.length}
+else{if(stop.__class__===$B.LongInt.$dict){stop=parseInt(stop.value)*(stop.pos ? 1 : -1)}
+if(stop<0){stop=Math.min(self.length,stop+self.length)}}
+for(var i=start;i < stop;i++){if(_eq(self[i]))return i}
+throw _b_.ValueError(_b_.str($.x)+" is not in list")}
+$ListDict.insert=function(){var $=$B.args('insert',3,{self:null,i:null,item:null},['self','i','item'],arguments,{},null,null)
+$.self.splice($.i,0,$.item)
+return $N}
+$ListDict.pop=function(){var $=$B.args('pop',2,{self:null,pos:null},['self','pos'],arguments,{pos:null},null,null),self=$.self,pos=$.pos
+if(pos===null){pos=self.length-1}
+pos=$B.$GetInt(pos)
+if(pos<0){pos+=self.length}
+var res=self[pos]
+if(res===undefined){throw _b_.IndexError('pop index out of range')}
+self.splice(pos,1)
+return res}
+$ListDict.remove=function(){var $=$B.args('remove',2,{self:null,x:null},['self','x'],arguments,{},null,null)
+var _eq=getattr($.x,'__eq__')
+for(var i=0,_len_i=$.self.length;i < _len_i;i++){if(getattr($.self[i],'__eq__')($.x)){$.self.splice(i,1)
+return $N}}
+throw _b_.ValueError(_b_.str($.x)+" is not in list")}
+$ListDict.reverse=function(self){var $=$B.args('reverse',1,{self:null},['self'],arguments,{},null,null),_len=$.self.length-1,i=parseInt($.self.length/2)
+while(i--){var buf=$.self[i]
+$.self[i]=$.self[_len-i]
+$.self[_len-i]=buf}
+return $N}
+function $partition(arg,array,begin,end,pivot)
+{var piv=array[pivot];
+array=swap(array,pivot,end-1);
+var store=begin;
+if(arg===null){if(array.$cl!==false){
+var le_func=_b_.getattr(array.$cl,'__le__')
+for(var ix=begin;ix<end-1;++ix){if(le_func(array[ix],piv)){array=swap(array,store,ix);
+++store;}}}else{for(var ix=begin;ix<end-1;++ix){if(getattr(array[ix],'__le__')(piv)){array=swap(array,store,ix);
+++store;}}}}else{var len=array.length
+for(var ix=begin;ix<end-1;++ix){var x=arg(array[ix])
+if(array.length!==len){throw ValueError('list modified during sort')}
+if(getattr(x,'__le__')(arg(piv))){array=swap(array,store,ix);
+++store;}}}
+array=swap(array,end-1,store);
+return store;}
+function swap(_array,a,b){var tmp=_array[a];
+_array[a]=_array[b];
+_array[b]=tmp;
+return _array}
+function $qsort(arg,array,begin,end)
+{if(end-1>begin){var pivot=begin+Math.floor(Math.random()*(end-begin)),len=array.length
+pivot=$partition(arg,array,begin,end,pivot);
+$qsort(arg,array,begin,pivot);
+$qsort(arg,array,pivot+1,end);}}
+function $elts_class(self){
+if(self.length==0){return null}
+var cl=$B.get_class(self[0]),i=self.length
+while(i--){
+if($B.get_class(self[i])!==cl)return false}
+return cl}
+$ListDict.sort=function(self){var $=$B.args('sort',1,{self:null},['self'],arguments,{},null,'kw')
+var func=null
+var reverse=false
+var kw_args=$.kw,keys=_b_.list(_b_.dict.$dict.keys(kw_args))
+for(var i=0;i<keys.length;i++){if(keys[i]=="key"){func=getattr(kw_args.$string_dict[keys[i]],'__call__')}
+else if(keys[i]=='reverse'){reverse=kw_args.$string_dict[keys[i]]}
+else{throw _b_.TypeError("'"+keys[i]+
+"' is an invalid keyword argument for this function")}}
+if(self.length==0)return
+self.$cl=$elts_class(self)
+if(func===null && self.$cl===_b_.str.$dict){self.sort()}
+else if(func===null && self.$cl===_b_.int.$dict){self.sort(function(a,b){return a-b})}
+else{$qsort(func,self,0,self.length)}
+if(reverse)$ListDict.reverse(self)
+return(self.__brython__ ? $N : self)}
+$B.set_func_names($ListDict)
+$B.$list=function(t){t.__brython__=true;
+return t}
+function list(){var $=$B.args('list',1,{obj:null},['obj'],arguments,{obj:null},null,null),obj=$.obj
+if(obj===null)return[]
+if(Array.isArray(obj)){
+obj=obj.slice()
+obj.__brython__=true;
+if(obj.__class__==$TupleDict){var res=obj.slice()
+res.__class__=$ListDict
+return res}
+return obj}
+var res=[],pos=0,arg=iter(obj),next_func=getattr(arg,'__next__')
+while(1){try{res[pos++]=next_func()}
+catch(err){if(!isinstance(err,_b_.StopIteration)){throw err}
+break}}
+res.__brython__=true 
+return res}
+list.__class__=$B.$factory
+list.$dict=$ListDict
+$ListDict.$factory=list
+list.$is_func=true
+list.__module__='builtins'
+list.__bases__=[]
+var $ListSubclassDict={__class__:$B.$type,__name__:'list',__new__: function(cls){return{__class__:cls.$dict,$t:[]}}}
+for(var $attr in $ListDict){if(typeof $ListDict[$attr]=='function' && 
+$ListDict[$attr].__class__!==$B.$factory){
+$ListDict[$attr]=(function(attr){var method=$ListDict[attr],func=function(){var self=arguments[0]
+if(self.$t!==undefined){var args=[self.$t]
+for(var i=1,len=arguments.length;i<len;i++){args.push(arguments[i])}
+return method.apply(null,args)}else{return method.apply(null,arguments)}}
+return func})($attr)
+$ListSubclassDict[$attr]=(function(attr){return function(){var args=[]
+if(arguments.length>0){var args=[arguments[0].$t]
+var pos=1
+for(var i=1,_len_i=arguments.length;i < _len_i;i++){args[pos++]=arguments[i]}}
+return $ListDict[attr].apply(null,args)}})($attr)}}
+$ListSubclassDict.__mro__=[$ListSubclassDict,$ObjectDict]
+$B.$ListSubclassFactory={__class__:$B.$factory,$dict:$ListSubclassDict}
+function $tuple(arg){return arg}
+var $TupleDict={__class__:$B.$type,__name__:'tuple',$native:true}
+$TupleDict.__iter__=function(self){return $B.$iterator(self,$tuple_iterator)}
+var $tuple_iterator=$B.$iterator_class('tuple_iterator')
+function tuple(){var obj=list.apply(null,arguments)
+obj.__class__=$TupleDict
+return obj}
+tuple.__class__=$B.$factory
+tuple.$dict=$TupleDict
+tuple.$is_func=true
+$TupleDict.$factory=tuple
+$TupleDict.__new__=$B.$__new__(tuple)
+tuple.__module__='builtins'
+for(var attr in $ListDict){switch(attr){case '__delitem__':
+case '__setitem__':
+case 'append':
+case 'extend':
+case 'insert':
+case 'remove':
+case 'pop':
+case 'reverse':
+case 'sort':
+break
+default: 
+if($TupleDict[attr]===undefined){if(typeof $ListDict[attr]=='function'){$TupleDict[attr]=(function(x){return function(){return $ListDict[x].apply(null,arguments)}})(attr)}else{$TupleDict[attr]=$ListDict[attr]}}}}
+$TupleDict.__delitem__=function(){throw _b_.TypeError("'tuple' object doesn't support item deletion")}
+$TupleDict.__setitem__=function(){throw _b_.TypeError("'tuple' object does not support item assignment")}
+$TupleDict.__eq__=function(self,other){
+if(other===undefined)return self===tuple
+return $ListDict.__eq__(self,other)}
+$TupleDict.__hash__=function(self){
+var x=0x345678
+for(var i=0,_len_i=self.length;i < _len_i;i++){var y=_b_.hash(self[i]);
+x=(1000003 * x)^ y & 0xFFFFFFFF;}
+return x}
+$TupleDict.__mro__=[$TupleDict,$ObjectDict]
+$TupleDict.__name__='tuple'
+$B.set_func_names($TupleDict)
+_b_.list=list
+_b_.tuple=tuple
+_b_.object.$dict.__bases__=tuple()})(__BRYTHON__)
+;(function($B){eval($B.InjectBuiltins())
+var $ObjectDict=object.$dict
+var $StringDict={__class__:$B.$type,__dir__:$ObjectDict.__dir__,__name__:'str',$native:true}
+function normalize_start_end($){if($.start===null||$.start===_b_.None){$.start=0}
+else if($.start<0){$.start +=$.self.length;$.start=Math.max(0,$.start)}
+if($.end===null||$.end===_b_.None){$.end=$.self.length}
+else if($.end<0){$.end +=$.self.length;$.end=Math.max(0,$.end)}
+if(!isinstance($.start,_b_.int)||!isinstance($.end,_b_.int)){throw _b_.TypeError(
+"slice indices must be integers or None or have an __index__ method")}}
+function reverse(s){
+return s.split('').reverse().join('')}
+function check_str(obj){if(!_b_.isinstance(obj,str)){throw _b_.TypeError("can't convert '"+
+$B.get_class(obj).__name__+"' object to str implicitely")}}
+$StringDict.__add__=function(self,other){if(!(typeof other==="string")){try{return getattr(other,'__radd__')(self)}
+catch(err){throw _b_.TypeError(
+"Can't convert "+$B.get_class(other).__name__+" to str implicitely")}}
+return self+other}
+$StringDict.__contains__=function(self,item){if(!(typeof item==="string")){throw _b_.TypeError(
+"'in <string>' requires string as left operand, not "+item.__class__)}
+var nbcar=item.length
+if(nbcar==0)return true 
+if(self.length==0)return nbcar==0
+for(var i=0,_len_i=self.length;i < _len_i;i++){if(self.substr(i,nbcar)==item)return true}
+return false}
+$StringDict.__delitem__=function(){throw _b_.TypeError("'str' object doesn't support item deletion")}
+$StringDict.__dir__=$ObjectDict.__dir__ 
+$StringDict.__eq__=function(self,other){if(other===undefined){
+return self===str}
+if(_b_.isinstance(other,_b_.str)){return other.valueOf()==self.valueOf()}
+return other===self.valueOf()}
+function preformat(self,fmt){if(fmt.empty){return _b_.str(self)}
+if(fmt.type && fmt.type!='s'){throw _b_.ValueError("Unknown format code '"+fmt.type+
+"' for object of type 'str'")}
+return self}
+$StringDict.__format__=function(self,format_spec){var fmt=new $B.parse_format_spec(format_spec)
+fmt.align=fmt.align ||'<'
+return $B.format_width(preformat(self,fmt),fmt)}
+$StringDict.__getitem__=function(self,arg){if(isinstance(arg,_b_.int)){var pos=arg
+if(arg<0)pos+=self.length
+if(pos>=0 && pos<self.length)return self.charAt(pos)
+throw _b_.IndexError('string index out of range')}
+if(isinstance(arg,slice)){var s=_b_.slice.$dict.$conv_for_seq(arg,self.length),start=s.start,stop=s.stop,step=s.step
+var res='',i=null
+if(step>0){if(stop<=start)return ''
+for(var i=start;i<stop;i+=step)res +=self.charAt(i)}else{
+if(stop>=start)return ''
+for(var i=start;i>stop;i+=step)res +=self.charAt(i)}
+return res}
+if(isinstance(arg,bool))return self.__getitem__(_b_.int(arg))
+throw _b_.TypeError('string indices must be integers')}
+$StringDict.__hash__=function(self){if(self===undefined){return $StringDict.__hashvalue__ ||$B.$py_next_hash-- }
+var hash=1;
+for(var i=0,_len_i=self.length;i < _len_i;i++){hash=(101*hash + self.charCodeAt(i))& 0xFFFFFFFF}
+return hash}
+$StringDict.__init__=function(self,arg){self.valueOf=function(){return arg}
+self.toString=function(){return arg}
+return _b_.None}
+var $str_iterator=$B.$iterator_class('str_iterator')
+$StringDict.__iter__=function(self){var items=self.split('')
+return $B.$iterator(items,$str_iterator)}
+$StringDict.__len__=function(self){return self.length}
+var kwarg_key=new RegExp('([^\\)]*)\\)')
+var NotANumber=function(){this.name='NotANumber'}
+var number_check=function(s){if(!isinstance(s,[_b_.int,_b_.float])){throw new NotANumber()}}
+var get_char_array=function(size,char){if(size <=0)
+return ''
+return new Array(size + 1).join(char)}
+var format_padding=function(s,flags,minus_one){var padding=flags.padding
+if(!padding){
+return s}
+s=s.toString()
+padding=parseInt(padding,10)
+if(minus_one){
+padding -=1}
+if(!flags.left){return get_char_array(padding - s.length,flags.pad_char)+ s}else{
+return s + get_char_array(padding - s.length,flags.pad_char)}}
+var format_int_precision=function(val,flags){var precision=flags.precision
+if(!precision){return val.toString()}
+precision=parseInt(precision,10)
+var s
+if(val.__class__===$B.LongInt.$dict){s=$B.LongInt.$dict.to_base(val,10)}else{
+s=val.toString()}
+var sign=s[0]
+if(s[0]==='-'){return '-' + get_char_array(precision - s.length + 1,'0')+ s.slice(1)}
+return get_char_array(precision - s.length,'0')+ s}
+var format_float_precision=function(val,upper,flags,modifier){var precision=flags.precision
+if(isFinite(val)){val=modifier(val,precision,flags,upper)
+return val}
+if(val===Infinity){val='inf'}else if(val===-Infinity){val='-inf'}else{
+val='nan'}
+if(upper){return val.toUpperCase()}
+return val}
+var format_sign=function(val,flags){if(flags.sign){if(val >=0){return "+"}}else if(flags.space){if(val >=0){return " "}}
+return ""}
+var str_format=function(val,flags){
+flags.pad_char=" " 
+return format_padding(str(val),flags)}
+var num_format=function(val,flags){number_check(val)
+if(val.__class__===$B.LongInt.$dict){val=$B.LongInt.$dict.to_base(val,10)}else{
+val=parseInt(val)}
+var s=format_int_precision(val,flags)
+if(flags.pad_char==='0'){if(val < 0){s=s.substring(1)
+return '-' + format_padding(s,flags,true)}
+var sign=format_sign(val,flags)
+if(sign !==''){return sign + format_padding(s,flags,true)}}
+return format_padding(format_sign(val,flags)+ s,flags)}
+var repr_format=function(val,flags){flags.pad_char=" " 
+return format_padding(repr(val),flags)}
+var ascii_format=function(val,flags){flags.pad_char=" " 
+return format_padding(ascii(val),flags)}
+var _float_helper=function(val,flags){number_check(val)
+if(!flags.precision){if(!flags.decimal_point){flags.precision=6}else{
+flags.precision=0}}else{
+flags.precision=parseInt(flags.precision,10)
+validate_precision(flags.precision)}
+return parseFloat(val)}
+var trailing_zeros=/(.*?)(0+)([eE].*)/
+var leading_zeros=/\.(0*)/
+var trailing_dot=/\.$/
+var validate_precision=function(precision){
+if(precision > 20){precision=20 }}
+var floating_point_format=function(val,upper,flags){val=_float_helper(val,flags)
+var v=val.toString()
+var v_len=v.length
+var dot_idx=v.indexOf('.')
+if(dot_idx < 0){dot_idx=v_len}
+if(val < 1 && val > -1){var zeros=leading_zeros.exec(v)
+var numzeros
+if(zeros){numzeros=zeros[1].length}else{
+numzeros=0}
+if(numzeros >=4){val=format_sign(val,flags)+ format_float_precision(val,upper,flags,_floating_g_exp_helper)
+if(!flags.alternate){var trl=trailing_zeros.exec(val)
+if(trl){val=trl[1].replace(trailing_dot,'')+ trl[3]}}else{
+if(flags.precision <=1){val=val[0]+ '.' + val.substring(1)}}
+return format_padding(val,flags)}
+flags.precision +=numzeros
+return format_padding(format_sign(val,flags)+ format_float_precision(val,upper,flags,function(val,precision){val=val.toFixed(min(precision,v_len - dot_idx)+ numzeros)}),flags)}
+if(dot_idx > flags.precision){val=format_sign(val,flags)+ format_float_precision(val,upper,flags,_floating_g_exp_helper)
+if(!flags.alternate){var trl=trailing_zeros.exec(val)
+if(trl){val=trl[1].replace(trailing_dot,'')+ trl[3]}}else{
+if(flags.precision <=1){val=val[0]+ '.' + val.substring(1)}}
+return format_padding(val,flags)}
+return format_padding(format_sign(val,flags)+ format_float_precision(val,upper,flags,function(val,precision){if(!flags.decimal_point){precision=min(v_len - 1,6)}else if(precision > v_len){if(!flags.alternate){precision=v_len}}
+if(precision < dot_idx){precision=dot_idx}
+return val.toFixed(precision - dot_idx)}),flags)}
+var _floating_g_exp_helper=function(val,precision,flags,upper){if(precision){--precision}
+val=val.toExponential(precision)
+var e_idx=val.lastIndexOf('e')
+if(e_idx > val.length - 4){val=val.substring(0,e_idx + 2)+ '0' + val.substring(e_idx + 2)}
+if(upper){return val.toUpperCase()}
+return val}
+var floating_point_decimal_format=function(val,upper,flags){val=_float_helper(val,flags)
+return format_padding(format_sign(val,flags)+ format_float_precision(val,upper,flags,function(val,precision,flags){val=val.toFixed(precision)
+if(precision===0 && flags.alternate){val +='.'}
+return val}),flags)}
+var _floating_exp_helper=function(val,precision,flags,upper){val=val.toExponential(precision)
+var e_idx=val.lastIndexOf('e')
+if(e_idx > val.length - 4){val=val.substring(0,e_idx + 2)+ '0' + val.substring(e_idx + 2)}
+if(upper){return val.toUpperCase()}
+return val}
+var floating_point_exponential_format=function(val,upper,flags){val=_float_helper(val,flags)
+return format_padding(format_sign(val,flags)+ format_float_precision(val,upper,flags,_floating_exp_helper),flags)}
+var signed_hex_format=function(val,upper,flags){var ret
+number_check(val)
+if(val.__class__===$B.LongInt.$dict){ret=$B.LongInt.$dict.to_base(val,16)}else{
+ret=parseInt(val)
+ret=ret.toString(16)}
+ret=format_int_precision(ret,flags)
+if(upper){ret=ret.toUpperCase()}
+if(flags.pad_char==='0'){if(val < 0){ret=ret.substring(1)
+ret='-' + format_padding(ret,flags,true)}
+var sign=format_sign(val,flags)
+if(sign !==''){ret=sign + format_padding(ret,flags,true)}}
+if(flags.alternate){if(ret.charAt(0)==='-'){if(upper){ret="-0X" + ret.slice(1)}else{
+ret="-0x" + ret.slice(1)}}else{
+if(upper){ret="0X" + ret}else{
+ret="0x" + ret}}}
+return format_padding(format_sign(val,flags)+ ret,flags)}
+var octal_format=function(val,flags){number_check(val)
+var ret 
+if(val.__class__===$B.LongInt.$dict){ret=$B.LongInt.$dict.to_base(8)}else{
+ret=parseInt(val)
+ret=ret.toString(8)}
+ret=format_int_precision(ret,flags)
+if(flags.pad_char==='0'){if(val < 0){ret=ret.substring(1)
+ret='-' + format_padding(ret,flags,true)}
+var sign=format_sign(val,flags)
+if(sign !==''){ret=sign + format_padding(ret,flags,true)}}
+if(flags.alternate){if(ret.charAt(0)==='-'){ret="-0o" + ret.slice(1)}else{
+ret="0o" + ret}}
+return format_padding(ret,flags)}
+var single_char_format=function(val,flags){if(isinstance(val,str)&& val.length==1)return val
+try{
+val=_b_.int(val)}catch(err){throw _b_.TypeError('%c requires int or char')}
+return format_padding(chr(val),flags)}
+var num_flag=function(c,flags){if(c==='0' && !flags.padding && !flags.decimal_point && !flags.left){flags.pad_char='0'
+return}
+if(!flags.decimal_point){flags.padding=(flags.padding ||"")+ c}else{
+flags.precision=(flags.precision ||"")+ c}}
+var decimal_point_flag=function(val,flags){if(flags.decimal_point){
+throw new UnsupportedChar()}
+flags.decimal_point=true}
+var neg_flag=function(val,flags){flags.pad_char=' ' 
+flags.left=true}
+var space_flag=function(val,flags){flags.space=true}
+var sign_flag=function(val,flags){flags.sign=true}
+var alternate_flag=function(val,flags){flags.alternate=true}
+var char_mapping={'s': str_format,'d': num_format,'i': num_format,'u': num_format,'o': octal_format,'r': repr_format,'a': ascii_format,'g': function(val,flags){return floating_point_format(val,false,flags)},'G': function(val,flags){return floating_point_format(val,true,flags)},'f': function(val,flags){return floating_point_decimal_format(val,false,flags)},'F': function(val,flags){return floating_point_decimal_format(val,true,flags)},'e': function(val,flags){return floating_point_exponential_format(val,false,flags)},'E': function(val,flags){return floating_point_exponential_format(val,true,flags)},'x': function(val,flags){return signed_hex_format(val,false,flags)},'X': function(val,flags){return signed_hex_format(val,true,flags)},'c': single_char_format,'0': function(val,flags){return num_flag('0',flags)},'1': function(val,flags){return num_flag('1',flags)},'2': function(val,flags){return num_flag('2',flags)},'3': function(val,flags){return num_flag('3',flags)},'4': function(val,flags){return num_flag('4',flags)},'5': function(val,flags){return num_flag('5',flags)},'6': function(val,flags){return num_flag('6',flags)},'7': function(val,flags){return num_flag('7',flags)},'8': function(val,flags){return num_flag('8',flags)},'9': function(val,flags){return num_flag('9',flags)},'-': neg_flag,' ': space_flag,'+': sign_flag,'.': decimal_point_flag,'#': alternate_flag}
+var UnsupportedChar=function(){this.name="UnsupportedChar"}
+$StringDict.__mod__=function(self,args){var length=self.length,pos=0 |0,argpos=null,getitem
+if(_b_.isinstance(args,_b_.tuple)){argpos=0 |0}else{getitem=_b_.getattr(args,'__getitem__',null)}
+var ret=''
+var $get_kwarg_string=function(s){
+++pos
+var rslt=kwarg_key.exec(s.substring(newpos))
+if(!rslt){throw _b_.ValueError("incomplete format key")}
+var key=rslt[1]
+newpos +=rslt[0].length
+try{
+var self=getitem(key)}catch(err){if(err.name==="KeyError"){throw err}
+throw _b_.TypeError("format requires a mapping")}
+return get_string_value(s,self)}
+var $get_arg_string=function(s){
+var self
+if(argpos===null){
+self=args}else{
+self=args[argpos++]
+if(self===undefined){throw _b_.TypeError("not enough arguments for format string")}}
+return get_string_value(s,self)}
+var get_string_value=function(s,self){
+var flags={'pad_char': ' '}
+do{
+var func=char_mapping[s[newpos]]
+try{
+if(func===undefined){throw new UnsupportedChar()}else{
+var ret=func(self,flags)
+if(ret !==undefined){return ret}
+++newpos}}catch(err){if(err.name==="UnsupportedChar"){invalid_char=s[newpos]
+if(invalid_char===undefined){throw _b_.ValueError("incomplete format")}
+throw _b_.ValueError("unsupported format character '" + invalid_char + 
+"' (0x" + invalid_char.charCodeAt(0).toString(16)+ ") at index " + newpos)}else if(err.name==="NotANumber"){var try_char=s[newpos]
+var cls=self.__class__
+if(!cls){if(typeof(self)==='string'){cls='str'}else{
+cls=typeof(self)}}else{
+cls=cls.__name__}
+throw _b_.TypeError("%" + try_char + " format: a number is required, not " + cls)}else{
+throw err}}}while(true)}
+var nbph=0 
+do{
+var newpos=self.indexOf('%',pos)
+if(newpos < 0){ret +=self.substring(pos)
+break}
+ret +=self.substring(pos,newpos)
+++newpos
+if(newpos < length){if(self[newpos]==='%'){ret +='%'}else{
+nbph++
+if(self[newpos]==='('){++newpos
+ret +=$get_kwarg_string(self)}else{
+ret +=$get_arg_string(self)}}}else{
+throw _b_.ValueError("incomplete format")}
+pos=newpos + 1}while(pos < length)
+if(argpos!==null){if(args.length>argpos){throw _b_.TypeError('not enough arguments for format string')}else if(args.length<argpos){throw _b_.TypeError('not all arguments converted during string formatting')}}else if(nbph==0){throw _b_.TypeError('not all arguments converted during string formatting')}
+return ret}
+$StringDict.__mro__=[$StringDict,$ObjectDict]
+$StringDict.__mul__=function(self,other){var $=$B.args('__mul__',2,{self:null,other:null},['self','other'],arguments,{},null,null)
+if(!isinstance(other,_b_.int)){throw _b_.TypeError(
+"Can't multiply sequence by non-int of type '"+
+$B.get_class(other).__name__+"'")}
+$res=''
+for(var i=0;i<other;i++){$res+=self.valueOf()}
+return $res}
+$StringDict.__ne__=function(self,other){return other!==self.valueOf()}
+$StringDict.__repr__=function(self){var res=self.replace(/\n/g,'\\\\n')
+res=res.replace(/\\/g,'\\\\')
+if(res.search('"')==-1 && res.search("'")==-1){return "'"+res+"'"}else if(self.search('"')==-1){return '"'+res+'"'}
+var qesc=new RegExp("'","g")
+res="'"+res.replace(qesc,"\\'")+"'" 
+return res}
+$StringDict.__setattr__=function(self,attr,value){return setattr(self,attr,value)}
+$StringDict.__setitem__=function(self,attr,value){throw _b_.TypeError("'str' object does not support item assignment")}
+$StringDict.__str__=function(self){if(self===undefined)return "<class 'str'>"
+return self.toString()}
+$StringDict.toString=function(){return 'string!'}
+var $comp_func=function(self,other){if(typeof other !=="string"){throw _b_.TypeError(
+"unorderable types: 'str' > "+$B.get_class(other).__name__+"()")}
+return self > other}
+$comp_func +='' 
+var $comps={'>':'gt','>=':'ge','<':'lt','<=':'le'}
+for(var $op in $comps){eval("$StringDict.__"+$comps[$op]+'__ = '+$comp_func.replace(/>/gm,$op))}
+$B.make_rmethods($StringDict)
+var $notimplemented=function(self,other){throw NotImplementedError("OPERATOR not implemented for class str")}
+$StringDict.capitalize=function(self){if(self.length==0)return ''
+return self.charAt(0).toUpperCase()+self.substr(1).toLowerCase()}
+$StringDict.casefold=function(self){throw _b_.NotImplementedError("function casefold not implemented yet");}
+$StringDict.center=function(self,width,fillchar){var $=$B.args("center",3,{self:null,width:null,fillchar:null},['self','width','fillchar'],arguments,{fillchar:' '},null,null)
+if($.width<=self.length)return self
+var pad=parseInt(($.width-self.length)/2)
+var res=$.fillchar.repeat(pad)
+res +=self + res
+if(res.length<$.width){res +=$.fillchar}
+return res}
+$StringDict.count=function(){var $=$B.args('count',4,{self:null,sub:null,start:null,stop:null},['self','sub','start','stop'],arguments,{start:null,stop:null},null,null)
+if(!(typeof $.sub==="string")){throw _b_.TypeError(
+"Can't convert '"+$B.get_class($.sub).__name__+"' object to str implicitly")}
+var substr=$.self
+if($.start!==null){var _slice
+if($.stop!==null){_slice=_b_.slice($.start,$.stop)}
+else{_slice=_b_.slice($.start,$.self.length)}
+substr=$StringDict.__getitem__.apply(null,[$.self].concat(_slice))}else{if($.self.length+$.sub.length==0){return 1}}
+if($.sub.length==0){if($.start==$.self.length){return 1}
+else if(substr.length==0){return 0}
+return substr.length+1}
+var n=0,pos=0
+while(pos<substr.length){pos=substr.indexOf($.sub,pos)
+if(pos>=0){n++;pos+=$.sub.length}else break;}
+return n}
+$StringDict.encode=function(self,encoding){if(encoding===undefined)encoding='utf-8'
+if(encoding=='rot13' ||encoding=='rot_13'){
+var res=''
+for(var i=0,_len=self.length;i<_len ;i++){var char=self.charAt(i)
+if(('a'<=char && char<='m')||('A'<=char && char<='M')){res +=String.fromCharCode(String.charCodeAt(char)+13)}else if(('m'<char && char<='z')||('M'<char && char<='Z')){res +=String.fromCharCode(String.charCodeAt(char)-13)}else{res +=char}}
+return res}
+return _b_.bytes(self,encoding)}
+$StringDict.endswith=function(){
+var $=$B.args("endswith",4,{self:null,suffix:null,start:null,end:null},['self','suffix','start','end'],arguments,{start:0,end:null},null,null)
+normalize_start_end($)
+var suffixes=$.suffix
+if(!isinstance(suffixes,_b_.tuple)){suffixes=[suffixes]}
+var s=$.self.substring($.start,$.end)
+for(var i=0,_len_i=suffixes.length;i < _len_i;i++){suffix=suffixes[i]
+if(!_b_.isinstance(suffix,str)){throw _b_.TypeError(
+"endswith first arg must be str or a tuple of str, not int")}
+if(suffix.length<=s.length &&
+s.substr(s.length-suffix.length)==suffix)return true}
+return false}
+$StringDict.expandtabs=function(self,tabsize){var $=$B.args('expandtabs',2,{self:null,tabsize:null},['self','tabsize'],arguments,{tabsize:8},null,null)
+var s=$B.$GetInt($.tabsize),col=0,pos=0,res=''
+if(s==1){return self.replace(/\t/g,' ')}
+while(pos<self.length){var car=self.charAt(pos)
+switch(car){case '\t':
+while(col%s > 0){res +=' ';col++}
+break
+case '\r':
+case '\n':
+res +=car
+col=0
+break
+default:
+res +=car
+col++
+break}
+pos++}
+return res}
+$StringDict.find=function(){
+var $=$B.args("$StringDict.find",4,{self:null,sub:null,start:null,end:null},['self','sub','start','end'],arguments,{start:0,end:null},null,null)
+check_str($.sub)
+normalize_start_end($)
+if(!isinstance($.start,_b_.int)||!isinstance($.end,_b_.int)){throw _b_.TypeError(
+"slice indices must be integers or None or have an __index__ method")}
+var s=$.self.substring($.start,$.end)
+if($.sub.length==0 && $.start==$.self.length){return $.self.length}
+if(s.length+$.sub.length==0){return -1}
+var last_search=s.length-$.sub.length
+for(var i=0;i<=last_search;i++){if(s.substr(i,$.sub.length)==$.sub){return $.start+i}}
+return -1}
+function parse_format(fmt_string){
+var elts=fmt_string.split(':'),name,conv,spec,name_ext=[]
+if(elts.length==1){
+name=fmt_string}else{
+name=elts[0]
+spec=elts.splice(1).join(':')}
+var elts=name.split('!')
+if(elts.length>1){name=elts[0]
+conv=elts[1]
+if(conv.length!==1 ||'ras'.search(conv)==-1){throw _b_.ValueError('wrong conversion flag '+conv)}}
+if(name!==undefined){
+function name_repl(match){name_ext.push(match)
+return ''}
+var name_ext_re=/\.[_a-zA-Z][_a-zA-Z0-9]*|\[[_a-zA-Z][_a-zA-Z0-9]*\]|\[[0-9]+\]/g
+name=name.replace(name_ext_re,name_repl)}
+return{name: name,name_ext: name_ext,conv: conv,spec: spec||''}}
+$StringDict.format=function(self){var $=$B.args('format',1,{self:null},['self'],arguments,{},'args','kw')
+var pos=0,_len=self.length,car,text='',parts=[],rank=0,defaults={}
+while(pos<_len){car=self.charAt(pos)
+if(car=='{' && self.charAt(pos+1)=='{'){
+text +='{'
+pos+=2}else if(car=='}' && self.charAt(pos+1)=='}'){
+text +='}'
+pos+=2}else if(car=='{'){
+parts.push(text)
+var end=pos+1,nb=1
+while(end<_len){if(self.charAt(end)=='{'){nb++;end++}
+else if(self.charAt(end)=='}'){nb--;end++
+if(nb==0){
+var fmt_string=self.substring(pos+1,end-1)
+var fmt_obj=parse_format(fmt_string)
+if(!fmt_obj.name){fmt_obj.name=rank+''
+rank++}
+if(fmt_obj.spec!==undefined){
+function replace_nested(name,key){if(/\d+/.exec(key)){
+return _b_.tuple.$dict.__getitem__($.args,parseInt(key))}else{
+return _b_.dict.$dict.__getitem__($.kw,key)}}
+fmt_obj.spec=fmt_obj.spec.replace(/\{(.+?)\}/g,replace_nested)}
+parts.push(fmt_obj)
+text=''
+break}}else{end++}}
+if(nb>0){throw ValueError("wrong format "+self)}
+pos=end}else{text +=car;pos++}}
+if(text){parts.push(text)}
+var res='',fmt
+for(var i=0;i<parts.length;i++){
+if(typeof parts[i]=='string'){res +=parts[i];continue}
+fmt=parts[i]
+if(fmt.name.charAt(0).search(/\d/)>-1){
+var pos=parseInt(fmt.name),value=_b_.tuple.$dict.__getitem__($.args,pos)}else{
+var value=_b_.dict.$dict.__getitem__($.kw,fmt.name)}
+for(var j=0;j<fmt.name_ext.length;j++){var ext=fmt.name_ext[j]
+if(ext.charAt(0)=='.'){
+value=_b_.getattr(value,ext.substr(1))}else{
+var key=ext.substr(1,ext.length-2)
+if(key.charAt(0).search(/\d/)>-1){key=parseInt(key)}
+value=_b_.getattr(value,'__getitem__')(key)}}
+if(fmt.conv=='a'){value=_b_.ascii(value)}
+else if(fmt.conv=='r'){value=_b_.repr(value)}
+else if(fmt.conv=='s'){value=_b_.str(value)}
+res +=_b_.getattr(value,'__format__')(fmt.spec)}
+return res}
+$StringDict.format_map=function(self){throw NotImplementedError("function format_map not implemented yet");}
+$StringDict.index=function(self){
+var res=$StringDict.find.apply(null,arguments)
+if(res===-1)throw _b_.ValueError("substring not found")
+return res}
+$StringDict.isalnum=function(){var $=$B.args('isalnum',1,{self:null},['self'],arguments,{},null,null)
+return /^[a-z0-9]+$/i.test($.self)}
+$StringDict.isalpha=function(self){var $=$B.args('isalpha',1,{self:null},['self'],arguments,{},null,null)
+return /^[a-z]+$/i.test($.self)}
+$StringDict.isdecimal=function(){var $=$B.args('isdecimal',1,{self:null},['self'],arguments,{},null,null)
+return /^[0-9]+$/.test($.self)}
+$StringDict.isdigit=function(){var $=$B.args('isdigit',1,{self:null},['self'],arguments,{},null,null)
+return /^[0-9]+$/.test($.self)}
+$StringDict.isidentifier=function(){var $=$B.args('isidentifier',1,{self:null},['self'],arguments,{},null,null)
+if($.self.search(/\$/)>-1){return false}
+var last=$.self.charAt($.self.length-1)
+if(' \n;'.search(last)>-1){return false}
+var dummy={}
+try{eval("dummy."+$.self);return true}
+catch(err){return false}}
+$StringDict.islower=function(){var $=$B.args('islower',1,{self:null},['self'],arguments,{},null,null)
+return($B.cased_letters_regexp.exec($.self)!==null)&&
+$.self==$.self.toLowerCase()&& $.self.search(/^\s*$/)==-1}
+$StringDict.isnumeric=function(){var $=$B.args('isnumeric',1,{self:null},['self'],arguments,{},null,null)
+return /^[0-9]+$/.test($.self)}
+$StringDict.isprintable=function(){var $=$B.args('isprintable',1,{self:null},['self'],arguments,{},null,null)
+return !/[^ -~]/.test($.self)}
+$StringDict.isspace=function(){var $=$B.args('isspace',1,{self:null},['self'],arguments,{},null,null)
+return /^\s+$/i.test($.self)}
+$StringDict.istitle=function(){var $=$B.args('istitle',1,{self:null},['self'],arguments,{},null,null)
+if($.self.search(/^\s*$/)>-1){return false}
+function get_case(char){if(char.toLowerCase()==char.toUpperCase()){return false}
+else if(char==char.toLowerCase()){return 'lower'}
+else{return 'upper'}}
+var pos=0,char,previous=false
+while(pos<$.self.length){char=$.self.charAt(pos)
+if(previous===undefined){previous=get_case(char)}
+else{_case=get_case(char)
+if(_case=='upper' && previous){return false}
+else if(_case=='lower' && !previous){return false}
+previous=_case}
+pos++}
+return true}
+$StringDict.isupper=function(){var $=$B.args('isupper',1,{self:null},['self'],arguments,{},null,null)
+return($B.cased_letters_regexp.exec($.self)!==null)&&
+$.self==$.self.toUpperCase()&& $.self.search(/^\s*$/)==-1}
+$StringDict.join=function(){var $=$B.args('join',2,{self:null,iterable:null},['self','iterable'],arguments,{},null,null)
+var iterable=_b_.iter($.iterable)
+var res=[],count=0
+while(1){try{var obj2=_b_.next(iterable)
+if(!isinstance(obj2,str)){throw _b_.TypeError(
+"sequence item "+count+": expected str instance, "+$B.get_class(obj2).__name__+" found")}
+res.push(obj2)}catch(err){if(_b_.isinstance(err,_b_.StopIteration)){break}
+else{throw err}}}
+return res.join($.self)}
+$StringDict.ljust=function(self){var $=$B.args('ljust',3,{self:null,width:null,fillchar:null},['self','width','fillchar'],arguments,{fillchar:' '},null,null)
+if($.width <=self.length)return self
+return self + $.fillchar.repeat($.width - self.length)}
+$StringDict.lower=function(){var $=$B.args('lower',1,{self:null},['self'],arguments,{},null,null)
+return $.self.toLowerCase()}
+$StringDict.lstrip=function(self,x){var $=$B.args('lstrip',2,{self:null,chars:null},['self','chars'],arguments,{chars:_b_.None},null,null)
+if($.chars===_b_.None){return $.self.replace(/^\s+/,'')}
+return $.self.replace(new RegExp("^["+$.chars+"]*"),"")}
+$StringDict.maketrans=function(){var $=$B.args('maketrans',3,{x:null,y:null,z:null},['x','y','z'],arguments,{y:null,z:null},null,null)
+var _t=_b_.dict()
+for(var i=0;i < 256;i++)_t.$numeric_dict[i]=i
+if($.y===null && $.z===null){
+if(!_b_.isinstance($.x,_b_.dict)){throw _b_.TypeError('maketrans only argument must be a dict')}
+var items=_b_.list(_b_.dict.$dict.items($.x))
+for(var i=0,len=items.length;i<len;i++){var k=items[i][0],v=items[i][1]
+if(!_b_.isinstance(k,_b_.int)){if(_b_.isinstance(k,_b_.str)&& k.length==1){k=_b_.ord(k)}
+else{throw _b_.TypeError("dictionary key "+k+
+" is not int or 1-char string")}}
+if(v!==_b_.None && !_b_.isinstance(v,[_b_.int,_b_.str])){throw _b_.TypeError("dictionary value "+v+
+" is not None, integer or string")}
+_t.$numeric_dict[k]=v}
+return _t}else{
+if(!(_b_.isinstance($.x,_b_.str)&& _b_.isinstance($.y,_b_.str))){throw _b_.TypeError("maketrans arguments must be strings")}else if($.x.length!==$.y.length){throw _b_.TypeError("maketrans arguments must be strings or same length")}else{var toNone={}
+if($.z!==null){
+if(!_b_.isinstance($.z,_b_.str)){throw _b_.TypeError('maketrans third argument must be a string')}
+for(var i=0,len=$.z.length;i<len;i++){toNone[_b_.ord($.z.charAt(i))]=true}}
+for(var i=0,len=$.x.length;i<len;i++){_t.$numeric_dict[_b_.ord($.x.charAt(i))]=_b_.ord($.y.charAt(i))}
+for(var k in toNone){_t.$numeric_dict[k]=_b_.None}
+return _t}}}
+$StringDict.partition=function(){var $=$B.args('partition',2,{self:null,sep:null},['self','sep'],arguments,{},null,null)
+if($.sep==''){throw _b_.ValueError('empty separator')}
+check_str($.sep)
+var i=$.self.indexOf($.sep)
+if(i==-1)return _b_.tuple([$.self,'',''])
+return _b_.tuple([$.self.substring(0,i),$.sep,$.self.substring(i+$.sep.length)])}
+function $re_escape(str)
+{var specials="[.*+?|()$^"
+for(var i=0,_len_i=specials.length;i < _len_i;i++){var re=new RegExp('\\'+specials.charAt(i),'g')
+str=str.replace(re,"\\"+specials.charAt(i))}
+return str}
+$StringDict.replace=function(self,old,_new,count){
+var $=$B.args('replace',4,{self:null,old:null,$$new:null,count:null},['self','old','$$new','count'],arguments,{count:-1},null,null),count=$.count,self=$.self,old=$.old,_new=$.$$new
+check_str(old)
+check_str(_new)
+if(!isinstance(count,[_b_.int,_b_.float])){throw _b_.TypeError("'" + $B.get_class(count).__name__ + 
+"' object cannot be interpreted as an integer");}else if(isinstance(count,_b_.float)){throw _b_.TypeError("integer argument expected, got float");}
+if(count==0){return self}
+if(count.__class__==$B.LongInt.$dict){count=parseInt(count.value)}
+if(old==''){if(_new==''){return self}
+if(self==''){return _new}
+var elts=self.split('')
+if(count>-1 && elts.length>=count){var rest=elts.slice(count).join('')
+return _new+elts.slice(0,count).join(_new)+rest}else{return _new+elts.join(_new)+_new}}else{var elts=$StringDict.split(self,old,count)}
+var res=self,pos=-1
+if(old.length==0){var res=_new
+for(var i=0;i<elts.length;i++){res +=elts[i]+_new}
+return res+rest}
+if(count < 0)count=res.length;
+while(count > 0){pos=res.indexOf(old,pos);
+if(pos < 0)
+break;
+res=res.substr(0,pos)+ _new + res.substr(pos + old.length);
+pos=pos + _new.length;
+count--;}
+return res;}
+$StringDict.rfind=function(self){
+var $=$B.args("rfind",4,{self:null,sub:null,start:null,end:null},['self','sub','start','end'],arguments,{start:0,end:null},null,null)
+normalize_start_end($)
+check_str($.sub)
+if($.sub.length==0){if($.start>$.self.length){return -1}
+else{return $.self.length}}
+var sublen=$.sub.length
+for(var i=$.end-sublen;i>=$.start;i--){if($.self.substr(i,sublen)==$.sub){return i}}
+return -1}
+$StringDict.rindex=function(){
+var res=$StringDict.rfind.apply(null,arguments)
+if(res==-1){throw _b_.ValueError("substring not found")}
+return res}
+$StringDict.rjust=function(self){var $=$B.args("rjust",3,{self:null,width:null,fillchar:null},['self','width','fillchar'],arguments,{fillchar:' '},null,null)
+if($.width <=self.length)return self
+return $.fillchar.repeat($.width - self.length)+ self}
+$StringDict.rpartition=function(self,sep){var $=$B.args('rpartition',2,{self:null,sep:null},['self','sep'],arguments,{},null,null)
+check_str($.sep)
+var self=reverse($.self),sep=reverse($.sep)
+var items=$StringDict.partition(self,sep).reverse()
+for(var i=0;i<items.length;i++){items[i]=items[i].split('').reverse().join('')}
+return items}
+$StringDict.rsplit=function(self){var $=$B.args("rsplit",3,{self:null,sep:null,maxsplit:null},['self','sep','maxsplit'],arguments,{sep:_b_.None,maxsplit:-1},null,null),sep=$.sep,maxsplit=$.maxsplit,self=$.self
+var rev_str=reverse($.self),rev_sep=sep===_b_.None ? sep : reverse($.sep),rev_res=$StringDict.split(rev_str,rev_sep,$.maxsplit)
+rev_res.reverse()
+for(var i=0;i<rev_res.length;i++){rev_res[i]=reverse(rev_res[i])}
+return rev_res}
+$StringDict.rstrip=function(self,x){var $=$B.args('rstrip',2,{self:null,chars:null},['self','chars'],arguments,{chars:_b_.None},null,null)
+if($.chars===_b_.None){return $.self.replace(/\s+$/,'')}
+return $.self.replace(new RegExp("["+$.chars+"]*$"),"")}
+$StringDict.split=function(){var args=[],pos=0
+var $=$B.args("split",3,{self:null,sep:null,maxsplit:null},['self','sep','maxsplit'],arguments,{sep:_b_.None,maxsplit:-1},null,null)
+var sep=$.sep,maxsplit=$.maxsplit,self=$.self
+if(maxsplit.__class__===$B.LongInt.$dict){maxsplit=parseInt(maxsplit.value)}
+if(sep=='')throw _b_.ValueError('empty separator')
+if(sep===_b_.None){var res=[]
+var pos=0
+while(pos<self.length&&self.charAt(pos).search(/\s/)>-1){pos++}
+if(pos===self.length-1){return[self]}
+var name=''
+while(1){if(self.charAt(pos).search(/\s/)===-1){if(name===''){name=self.charAt(pos)}
+else{name+=self.charAt(pos)}}else{if(name!==''){res.push(name)
+if(maxsplit!==-1&&res.length===maxsplit+1){res.pop()
+res.push(name+self.substr(pos))
+return res}
+name=''}}
+pos++
+if(pos>self.length-1){if(name){res.push(name)}
+break}}
+return res}else{var res=[],s='',pos=0,seplen=sep.length
+if(maxsplit==0){return[self]}
+while(pos<self.length){if(self.substr(pos,seplen)==sep){res.push(s)
+pos +=seplen
+if(maxsplit>-1 && res.length>=maxsplit){res.push(self.substr(pos))
+return res}
+s=''}else{s +=self.charAt(pos)
+pos++}}
+res.push(s)
+return res}}
+$StringDict.splitlines=function(self){var $=$B.args('splitlines',2,{self:null,keepends:null},['self','keepends'],arguments,{keepends:false},null,null)
+if(!_b_.isinstance($.keepends,[_b_.bool,_b_.int])){throw _b_.TypeError('integer argument expected, got '+
+$B.get_class($.keepends).__name)}
+var keepends=_b_.int($.keepends)
+if(keepends){var res=[],start=pos,pos=0,x,self=$.self
+while(pos<self.length){if(self.substr(pos,2)=='\r\n'){res.push(self.substring(start,pos+2))
+start=pos+2
+pos=start}else if(self.charAt(pos)=='\r' ||self.charAt(pos)=='\n'){res.push(self.substring(start,pos+1))
+start=pos+1
+pos=start}else{pos++}}
+var rest=self.substr(start)
+if(rest){res.push(rest)}
+return res}else{var self=$.self.replace(/[\r\n]$/,'')
+return self.split(/\n|\r\n|\r/)}}
+$StringDict.startswith=function(){
+var $=$B.args("startswith",4,{self:null,prefix:null,start:null,end:null},['self','prefix','start','end'],arguments,{start:0,end:null},null,null)
+normalize_start_end($)
+var prefixes=$.prefix
+if(!isinstance(prefixes,_b_.tuple)){prefixes=[prefixes]}
+var s=$.self.substring($.start,$.end)
+for(var i=0,_len_i=prefixes.length;i < _len_i;i++){prefix=prefixes[i]
+if(!_b_.isinstance(prefix,str)){throw _b_.TypeError(
+"endswith first arg must be str or a tuple of str, not int")}
+if(s.substr(0,prefix.length)==prefix)return true}
+return false}
+$StringDict.strip=function(){var $=$B.args('strip',2,{self:null,chars:null},['self','chars'],arguments,{chars:_b_.None},null,null)
+return $StringDict.rstrip($StringDict.lstrip($.self,$.chars),$.chars)}
+$StringDict.swapcase=function(self){var $=$B.args('swapcase',1,{self:null},['self'],arguments,{},null,null)
+return $.self.replace(/([a-z])|([A-Z])/g,function($0,$1,$2)
+{return($1)? $0.toUpperCase(): $0.toLowerCase()})}
+$StringDict.title=function(self){var $=$B.args('title',1,{self:null},['self'],arguments,{},null,null)
+var res='',previous=false
+function is_cased(c){return c.toLowerCase()!=c.toUpperCase()}
+for(var i=0;i<$.self.length;i++){var char=$.self.charAt(i),cased=is_cased(char)
+if(!previous && cased){res +=char.toUpperCase()}else if(previous){res+=char.toLowerCase()}
+else{res+=char}
+previous=cased}
+return res}
+$StringDict.translate=function(self,table){var res=[],pos=0
+if(isinstance(table,_b_.dict)){for(var i=0,_len_i=self.length;i < _len_i;i++){var repl=_b_.dict.$dict.get(table,self.charCodeAt(i),-1)
+if(repl==-1){res[pos++]=self.charAt(i)}
+else if(repl!==None){res[pos++]=_b_.chr(repl)}}}
+return res.join('')}
+$StringDict.upper=function(){var $=$B.args('lower',1,{self:null},['self'],arguments,{},null,null)
+return $.self.toUpperCase()}
+$StringDict.zfill=function(self,width){var $=$B.args('zfill',2,{self:null,width:null},['self','width'],arguments,{},null,null)
+if($.width <=self.length){return self}
+switch(self.charAt(0)){case '+':
+case '-':
+return self.charAt(0)+'0'.repeat($.width-self.length)+self.substr(1)
+default:
+return '0'.repeat(width - self.length)+self}}
+function str(arg){if(arg===undefined)return ''
+switch(typeof arg){case 'string':
+return arg
+case 'number': 
+if(isFinite(arg)){return arg.toString()}}
+try{if(arg.__class__===$B.$factory){
+var func=$B.$type.__getattribute__(arg.$dict.__class__,'__str__')
+if(func.__func__===_b_.object.$dict.__str__){return func(arg)}
+return func()}
+var f=getattr(arg,'__str__')
+return f()}
+catch(err){
+try{
+var f=getattr(arg,'__repr__')
+return getattr(f,'__call__')()}catch(err){if($B.debug>1){console.log(err)}
+console.log('Warning - no method __str__ or __repr__, default to toString',arg)
+return arg.toString()}}}
+str.__class__=$B.$factory
+str.$dict=$StringDict
+$StringDict.$factory=str
+$StringDict.__new__=function(cls){if(cls===undefined){throw _b_.TypeError('str.__new__(): not enough arguments')}
+return{__class__:cls.$dict}}
+$B.set_func_names($StringDict)
+var $StringSubclassDict={__class__:$B.$type,__name__:'str'}
+for(var $attr in $StringDict){if(typeof $StringDict[$attr]=='function'){$StringSubclassDict[$attr]=(function(attr){return function(){var args=[],pos=0
+if(arguments.length>0){var args=[arguments[0].valueOf()],pos=1
+for(var i=1,_len_i=arguments.length;i < _len_i;i++){args[pos++]=arguments[i]}}
+return $StringDict[attr].apply(null,args)}})($attr)}}
+$StringSubclassDict.__mro__=[$StringSubclassDict,$ObjectDict]
+$B.$StringSubclassFactory={__class__:$B.$factory,$dict:$StringSubclassDict}
+_b_.str=str
+$B.parse_format_spec=function(spec){if(spec==''){this.empty=true}
+else{var pos=0,aligns='<>=^',digits='0123456789',types='bcdeEfFgGnosxX%',align_pos=aligns.indexOf(spec.charAt(0))
+if(align_pos!=-1){if(spec.charAt(1)&& aligns.indexOf(spec.charAt(1))!=-1){
+this.fill=spec.charAt(0)
+this.align=spec.charAt(1)
+pos=2}else{
+this.align=aligns[align_pos];
+this.fill=' ';
+pos++}}else{align_pos=aligns.indexOf(spec.charAt(1))
+if(spec.charAt(1)&& align_pos!=-1){
+this.align=aligns[align_pos]
+this.fill=spec.charAt(0)
+pos=2}}
+var car=spec.charAt(pos)
+if(car=='+'||car=='-'||car==' '){this.sign=car;
+pos++;
+car=spec.charAt(pos);}
+if(car=='#'){this.alternate=true;pos++;car=spec.charAt(pos)}
+if(car=='0'){
+this.fill='0'
+this.align='='
+pos++;car=spec.charAt(pos)}
+while(car && digits.indexOf(car)>-1){if(this.width===undefined){this.width=car}
+else{this.width+=car}
+pos++;car=spec.charAt(pos)}
+if(this.width!==undefined){this.width=parseInt(this.width)}
+if(car==','){this.comma=true;pos++;car=spec.charAt(pos)}
+if(car=='.'){if(digits.indexOf(spec.charAt(pos+1))==-1){throw _b_.ValueError("Missing precision in format spec")}
+this.precision=spec.charAt(pos+1)
+pos+=2;car=spec.charAt(pos)
+while(car && digits.indexOf(car)>-1){this.precision+=car;pos++;car=spec.charAt(pos)}
+this.precision=parseInt(this.precision)}
+if(car && types.indexOf(car)>-1){this.type=car;pos++;car=spec.charAt(pos)}
+if(pos!==spec.length){
+throw _b_.ValueError("Invalid format specifier")}}
+this.toString=function(){return(this.fill===undefined ? '' : _b_.str(this.fill))+
+(this.align||'')+
+(this.sign||'')+
+(this.alternate ? '#' : '')+
+(this.sign_aware ? '0' : '')+
+(this.width ||'')+
+(this.comma ? ',' : '')+
+(this.precision ? '.'+this.precision : '')+
+(this.type ||'')}}
+$B.format_width=function(s,fmt){if(fmt.width && s.length<fmt.width){var fill=fmt.fill ||' ',align=fmt.align ||'<',missing=fmt.width-s.length
+switch(align){case '<':
+return s+fill.repeat(missing)
+case '>':
+return fill.repeat(missing)+s
+case '=':
+if('+-'.indexOf(s.charAt(0))>-1){return s.charAt(0)+fill.repeat(missing)+s.substr(1)}else{return fill.repeat(missing)+s }
+case '^':
+left=parseInt(missing/2)
+return fill.repeat(left)+s+fill.repeat(missing-left)}}
+return s}})(__BRYTHON__)
+;(function($B){eval($B.InjectBuiltins())
+var $ObjectDict=_b_.object.$dict,str_hash=_b_.str.$dict.__hash__,$N=_b_.None
+function $DictClass($keys,$values){this.iter=null
+this.__class__=$DictDict
+$DictDict.clear(this)
+var setitem=$DictDict.__setitem__
+var i=$keys.length
+while(i--)setitem($keys[i],$values[i])}
+var $DictDict={__class__:$B.$type,__name__ : 'dict',$native:true,__dir__:$ObjectDict.__dir__}
+var $key_iterator=function(d){this.d=d
+this.current=0
+this.iter=new $item_generator(d)}
+$key_iterator.prototype.length=function(){return this.iter.length }
+$key_iterator.prototype.next=function(){return this.iter.next()[0]}
+var $value_iterator=function(d){this.d=d
+this.current=0
+this.iter=new $item_generator(d)}
+$value_iterator.prototype.length=function(){return this.iter.length }
+$value_iterator.prototype.next=function(){return this.iter.next()[1]}
+var $item_generator=function(d){this.i=0
+if(d.$jsobj){this.items=[]
+for(var attr in d.$jsobj){if(attr.charAt(0)!='$'){this.items.push([attr,d.$jsobj[attr]])}}
+this.length=this.items.length;
+return}
+var items=[]
+var pos=0
+for(var k in d.$numeric_dict){items[pos++]=[parseFloat(k),d.$numeric_dict[k]]}
+for(var k in d.$string_dict){items[pos++]=[k,d.$string_dict[k]]}
+for(var k in d.$object_dict){items[pos++]=d.$object_dict[k]}
+this.items=items
+this.length=items.length}
+$item_generator.prototype.next=function(){if(this.i < this.items.length){return this.items[this.i++]}
+throw _b_.StopIteration("StopIteration")}
+$item_generator.prototype.as_list=function(){return this.items}
+var $item_iterator=function(d){this.d=d
+this.current=0
+this.iter=new $item_generator(d)}
+$item_iterator.prototype.length=function(){return this.iter.items.length }
+$item_iterator.prototype.next=function(){return _b_.tuple(this.iter.next())}
+var $copy_dict=function(left,right){var _l=new $item_generator(right).as_list()
+var si=$DictDict.__setitem__
+var i=_l.length
+while(i--)si(left,_l[i][0],_l[i][1])}
+$iterator_wrapper=function(items,klass){var res={__class__:klass,__iter__:function(){items.iter.i=0;return res},__len__:function(){return items.length()},__next__:function(){return items.next()},__repr__:function(){return klass.__name__+'('+ new $item_generator(items).as_list().join(',')+ ')'},}
+res.__str__=res.toString=res.__repr__
+return res}
+$DictDict.__bool__=function(self){var $=$B.args('__bool__',1,{self:null},['self'],arguments,{},null,null)
+return $DictDict.__len__(self)> 0}
+$DictDict.__contains__=function(){var $=$B.args('__contains__',2,{self:null,item:null},['self','item'],arguments,{},null,null),self=$.self,item=$.item
+if(self.$jsobj)return self.$jsobj[item]!==undefined
+switch(typeof item){case 'string':
+return self.$string_dict[item]!==undefined
+case 'number':
+return self.$numeric_dict[item]!==undefined}
+var _key=hash(item)
+if(self.$str_hash[_key]!==undefined &&
+_b_.getattr(item,'__eq__')(self.$str_hash[_key])){return true}
+if(self.$numeric_dict[_key]!==undefined &&
+_b_.getattr(item,'__eq__')(_key)){return true}
+if(self.$object_dict[_key]!==undefined){
+var _eq=getattr(item,'__eq__')
+if(_eq(self.$object_dict[_key][0])){return true}}
+return false}
+$DictDict.__delitem__=function(){var $=$B.args('__eq__',2,{self:null,arg:null},['self','arg'],arguments,{},null,null),self=$.self,arg=$.arg
+if(self.$jsobj){if(self.$jsobj[arg]===undefined){throw KeyError(arg)}
+delete self.$jsobj[arg]
+return $N}
+switch(typeof arg){case 'string':
+if(self.$string_dict[arg]===undefined)throw KeyError(_b_.str(arg))
+delete self.$string_dict[arg]
+delete self.$str_hash[str_hash(arg)]
+return $N
+case 'number':
+if(self.$numeric_dict[arg]===undefined)throw KeyError(_b_.str(arg))
+delete self.$numeric_dict[arg]
+return $N}
+var _key=hash(arg)
+if(self.$object_dict[_key]!==undefined){delete self.$object_dict[_key]}
+if(self.$jsobj)delete self.$jsobj[arg]
+return $N}
+$DictDict.__eq__=function(){var $=$B.args('__eq__',2,{self:null,other:null},['self','other'],arguments,{},null,null),self=$.self,other=$.other
+if(!isinstance(other,dict))return false
+if($DictDict.__len__(self)!=$DictDict.__len__(other)){return false}
+if((self.$numeric_dict.length!=other.$numeric_dict.length)||
+(self.$string_dict.length!=other.$string_dict.length)||
+(self.$object_dict.length!=other.$object_dict.length)){return false}
+for(var k in self.$numeric_dict){if(!_b_.getattr(other.$numeric_dict[k],'__eq__')(self.$numeric_dict[k])){return false}}
+for(var k in self.$string_dict){if(!_b_.getattr(other.$string_dict[k],'__eq__')(self.$string_dict[k])){return false}}
+for(var k in self.$object_dict){if(!_b_.getattr(other.$object_dict[k][1],'__eq__')(self.$object_dict[k][1])){return false}}
+return true}
+$DictDict.__getitem__=function(){var $=$B.args('__getitem__',2,{self:null,arg:null},['self','arg'],arguments,{},null,null),self=$.self,arg=$.arg
+if(self.$jsobj){if(self.$jsobj[arg]===undefined){return None}
+return self.$jsobj[arg]}
+switch(typeof arg){case 'string':
+if(self.$string_dict[arg]!==undefined)return self.$string_dict[arg]
+break
+case 'number':
+if(self.$numeric_dict[arg]!==undefined)return self.$numeric_dict[arg]}
+var _key=_b_.getattr(arg,'__hash__')(),_eq=_b_.getattr(arg,'__eq__')
+var sk=self.$str_hash[_key]
+if(sk!==undefined && _eq(sk)){return self.$string_dict[sk]}
+if(self.$numeric_dict[_key]!==undefined && _eq(_key)){return self.$numeric_dict[_key]}
+var obj_ref=self.$object_dict[_key]
+if(obj_ref!==undefined){
+_eq(self.$object_dict[_key][0])
+return self.$object_dict[_key][1]}
+if(self.__class__!==$DictDict){try{var missing_method=getattr(self.__class__.$factory,'__missing__')
+return missing_method(self,arg)}catch(err){}}
+throw KeyError(_b_.str(arg))}
+$DictDict.__hash__=function(self){if(self===undefined){return $DictDict.__hashvalue__ ||$B.$py_next_hash-- }
+throw _b_.TypeError("unhashable type: 'dict'");}
+$DictDict.__init__=function(self){var args=[],pos=0
+for(var i=1;i<arguments.length;i++){args[pos++]=arguments[i]}
+$DictDict.clear(self)
+switch(args.length){case 0:
+return
+case 1:
+var obj=args[0]
+if(Array.isArray(obj)){var i=obj.length
+var si=$DictDict.__setitem__
+while(i-->0)si(self,obj[i-1][0],obj[i-1][1])
+return $N}else if(isinstance(obj,dict)){$copy_dict(self,obj)
+return $N}
+if(obj.__class__===$B.JSObject.$dict){
+var si=$DictDict.__setitem__
+for(var attr in obj.js)si(self,attr,obj.js[attr])
+self.$jsobj=obj.js
+return $N}}
+var $ns=$B.args('dict',0,{},[],args,{},'args','kw')
+var args=$ns['args']
+var kw=$ns['kw']
+if(args.length>0){if(isinstance(args[0],dict)){$B.$copy_dict(self,args[0])
+return $N}
+if(Array.isArray(args[0])){var src=args[0]
+var i=src.length -1
+var si=$DictDict.__setitem__
+while(i-->0)si(self,src[i-1][0],src[i-1][1])}else{var iterable=iter(args[0])
+while(1){try{var elt=next(iterable)
+var key=getattr(elt,'__getitem__')(0)
+var value=getattr(elt,'__getitem__')(1)
+$DictDict.__setitem__(self,key,value)}catch(err){if(err.__name__==='StopIteration'){break}
+throw err}}}}
+if($DictDict.__len__(kw)> 0)$copy_dict(self,kw)
+return $N}
+var $dict_iterator=$B.$iterator_class('dict iterator')
+$DictDict.__iter__=function(self){return $DictDict.keys(self)}
+$DictDict.__len__=function(self){var _count=0
+if(self.$jsobj){for(var attr in self.$jsobj){if(attr.charAt(0)!='$'){_count++}}
+return _count}
+for(var k in self.$numeric_dict)_count++
+for(var k in self.$string_dict)_count++
+for(var k in self.$object_dict)_count+=self.$object_dict[k].length
+return _count}
+$DictDict.__mro__=[$DictDict,$ObjectDict]
+$DictDict.__ne__=function(self,other){return !$DictDict.__eq__(self,other)}
+$DictDict.__next__=function(self){if(self.$iter==null){self.$iter=new $item_generator(self)}
+try{
+return self.$iter.next()}catch(err){if(err.__name__ !=="StopIteration"){throw err }}}
+$DictDict.__repr__=function(self){if(self===undefined)return "<class 'dict'>"
+if(self.$jsobj){
+var res=[]
+for(var attr in self.$jsobj){if(attr.charAt(0)=='$' ||attr=='__class__'){continue}
+else{try{res.push("'"+attr+"': "+_b_.repr(self.$jsobj[attr]))}catch(err){}}}
+return '{'+res.join(', ')+'}'}
+var _objs=[self]
+var res=[],pos=0
+var items=new $item_generator(self).as_list()
+for(var i=0;i < items.length;i++){var itm=items[i]
+if(itm[1]===self){res[pos++]=repr(itm[0])+': {...}'}
+else{res[pos++]=repr(itm[0])+': '+repr(itm[1])}}
+return '{'+ res.join(', ')+'}'}
+$DictDict.__setitem__=function(self,key,value){var $=$B.args('__setitem__',3,{self:null,key:null,value:null},['self','key','value'],arguments,{},null,null),self=$.self,key=$.key,value=$.value
+if(self.$jsobj){self.$jsobj[key]=value;return}
+switch(typeof key){case 'string':
+self.$string_dict[key]=value
+self.$str_hash[str_hash(key)]=key
+return $N
+case 'number':
+self.$numeric_dict[key]=value
+return $N}
+var _key=hash(key)
+var _eq=getattr(key,'__eq__')
+if(self.$numeric_dict[_key]!==undefined && _eq(_key)){self.$numeric_dict[_key]=value
+return $N}
+var sk=self.$str_hash[_key]
+if(sk!==undefined && _eq(sk)){self.$string_dict[sk]=value
+return $N}
+var obj_ref=self.$object_dict[_key]
+if(obj_ref!==undefined){
+_eq(self.$object_dict[_key][0])}
+self.$object_dict[_key]=[key,value]
+return $N}
+$DictDict.__str__=$DictDict.__repr__
+$B.make_rmethods($DictDict)
+$DictDict.clear=function(){
+var $=$B.args('clear',1,{self:null},['self'],arguments,{},null,null),self=$.self
+self.$numeric_dict={}
+self.$string_dict={}
+self.$str_hash={}
+self.$object_dict={}
+if(self.$jsobj)self.$jsobj={}
+return $N}
+$DictDict.copy=function(self){
+var $=$B.args('copy',1,{self:null},['self'],arguments,{},null,null),self=$.self,res=_b_.dict()
+$copy_dict(res,self)
+return res}
+$DictDict.fromkeys=function(){var $=$B.args('fromkeys',3,{cls:null,keys:null,value:null},['cls','keys','value'],arguments,{value:_b_.None},null,null),keys=$.keys,value=$.value
+var res=$.cls()
+var keys_iter=_b_.iter(keys)
+while(1){try{var key=_b_.next(keys_iter)
+$DictDict.__setitem__(res,key,value)}catch(err){if($B.is_exc(err,[_b_.StopIteration])){return res}
+throw err}}}
+$DictDict.fromkeys.$type='classmethod'
+$DictDict.get=function(){var $=$B.args('get',3,{self:null,key:null,_default:null},['self','key','_default'],arguments,{_default:$N},null,null)
+try{return $DictDict.__getitem__($.self,$.key)}
+catch(err){if(_b_.isinstance(err,_b_.KeyError)){return $._default}
+else{throw err}}}
+var $dict_itemsDict=$B.$iterator_class('dict_items')
+$DictDict.items=function(self){if(arguments.length > 1){var _len=arguments.length - 1
+var _msg="items() takes no arguments ("+_len+" given)"
+throw _b_.TypeError(_msg)}
+return $iterator_wrapper(new $item_iterator(self),$dict_itemsDict)}
+var $dict_keysDict=$B.$iterator_class('dict_keys')
+$DictDict.keys=function(self){if(arguments.length > 1){var _len=arguments.length - 1
+var _msg="keys() takes no arguments ("+_len+" given)"
+throw _b_.TypeError(_msg)}
+return $iterator_wrapper(new $key_iterator(self),$dict_keysDict)}
+$DictDict.pop=function(){var $=$B.args('pop',3,{self:null,key: null,_default:null},['self','key','_default'],arguments,{_default:$N},null,null),self=$.self,key=$.key,_default=$._default
+try{var res=$DictDict.__getitem__(self,key)
+$DictDict.__delitem__(self,key)
+return res}catch(err){if(err.__name__==='KeyError'){if(_default!==undefined)return _default
+throw err}
+throw err}}
+$DictDict.popitem=function(self){try{var itm=new $item_iterator(self).next()
+$DictDict.__delitem__(self,itm[0])
+return _b_.tuple(itm)}catch(err){if(err.__name__=="StopIteration"){throw KeyError("'popitem(): dictionary is empty'")}}}
+$DictDict.setdefault=function(){var $=$B.args('setdefault',3,{self:null,key: null,_default:null},['self','key','_default'],arguments,{},null,null),self=$.self,key=$.key,_default=$._default
+try{return $DictDict.__getitem__(self,key)}
+catch(err){if(_default===undefined)_default=None
+$DictDict.__setitem__(self,key,_default)
+return _default}}
+$DictDict.update=function(self){var $=$B.args('update',1,{'self':null},['self'],arguments,{},'args','kw'),self=$.self,args=$.args,kw=$.kw
+if(args.length>0){var o=args[0]
+if(isinstance(o,dict)){$copy_dict(self,o)}else if(hasattr(o,'__getitem__')&& hasattr(o,'keys')){var _keys=_b_.list(getattr(o,'keys')())
+var si=$DictDict.__setitem__
+var i=_keys.length
+while(i--){
+var _value=getattr(o,'__getitem__')(_keys[i])
+si(self,_keys[i],_value)}}}
+$copy_dict(self,kw)
+return $N}
+var $dict_valuesDict=$B.$iterator_class('dict_values')
+$DictDict.values=function(self){if(arguments.length > 1){var _len=arguments.length - 1
+var _msg="values() takes no arguments ("+_len+" given)"
+throw _b_.TypeError(_msg)}
+return $iterator_wrapper(new $value_iterator(self),$dict_valuesDict)}
+function dict(args,second){var res={__class__:$DictDict,$numeric_dict :{},$object_dict :{},$string_dict :{},$str_hash:{},length: 0}
+if(args===undefined){return res}
+if(second===undefined){if(Array.isArray(args)){
+var i=-1,stop=args.length-1
+var si=$DictDict.__setitem__
+while(i++<stop){var item=args[i]
+switch(typeof item[0]){case 'string':
+res.$string_dict[item[0]]=item[1]
+res.$str_hash[str_hash(item[0])]=item[0]
+break;
+case 'number':
+res.$numeric_dict[item[0]]=item[1]
+break
+default:
+si(res,item[0],item[1])
+break}}
+return res}else if(args.$nat=='kw'){
+var kw=args['kw']
+for(var attr in kw){switch(typeof attr){case 'string':
+res.$string_dict[attr]=kw[attr]
+res.$str_hash[str_hash(attr)]=attr
+break;
+case 'number':
+res.$numeric_dict[attr]=kw[attr]
+break
+default:
+si(res,attr,kw[attr])
+break}}
+return res}}
+var _args=[res],pos=1
+for(var i=0,_len_i=arguments.length;i < _len_i;i++){_args[pos++]=arguments[i]}
+$DictDict.__init__.apply(null,_args)
+return res}
+dict.__class__=$B.$factory
+dict.$dict=$DictDict
+$DictDict.$factory=dict
+$DictDict.__new__=$B.$__new__(dict)
+_b_.dict=dict
+$B.$dict_iterator=function(d){return new $item_generator(d)}
+$B.$dict_length=$DictDict.__len__
+$B.$dict_getitem=$DictDict.__getitem__
+$B.$dict_get=$DictDict.get
+$B.$dict_set=$DictDict.__setitem__
+$B.$dict_contains=$DictDict.__contains__
+$B.$dict_items=function(d){return new $item_generator(d).as_list()}
+$B.$copy_dict=$copy_dict 
+$B.$dict_get_copy=$DictDict.copy 
+var mappingproxyDict={__class__ : $B.$type,__name__ : "mappingproxy"}
+mappingproxyDict.__mro__=[mappingproxyDict,_b_.object.$dict]
+mappingproxyDict.__setitem__=function(){throw _b_.TypeError("'mappingproxy' object does not support item assignment")}
+function mappingproxy(obj){var res=obj_dict(obj)
+res.__class__=mappingproxyDict
+return res}
+mappingproxy.__class__=$B.$factory
+mappingproxy.$dict=mappingproxyDict
+mappingproxyDict.$factory=mappingproxy
+$B.mappingproxy=mappingproxy
+$B.obj_dict=function(obj){var res=dict()
+res.$jsobj=obj
+return res}})(__BRYTHON__)
+;(function($B){var _=$B.builtins,$N=_.None
+function create_type(obj){return $B.get_class(obj).$factory()}
+function clone(obj){var res=create_type(obj)
+res.$items=obj.$items.slice()
+return res }
+var $SetDict={__class__:$B.$type,__dir__:_.object.$dict.__dir__,__name__:'set',$native:true}
+$SetDict.__add__=function(self,other){throw _.TypeError("unsupported operand type(s) for +: 'set' and " + 
+typeof other )}
+$SetDict.__and__=function(self,other,accept_iter){$test(accept_iter,other)
+var res=create_type(self)
+for(var i=0,_len_i=self.$items.length;i < _len_i;i++){if(_.getattr(other,'__contains__')(self.$items[i])){$SetDict.add(res,self.$items[i])}}
+return res}
+$SetDict.__contains__=function(self,item){if(self.$num &&(typeof item=='number')){if(isNaN(item)){
+for(var i=self.$items.length-1;i>=0;i--){if(isNaN(self.$items[i])){return true}}
+return false}else{return self.$items.indexOf(item)>-1}}
+if(self.$str &&(typeof item=='string')){return self.$items.indexOf(item)>-1}
+if(! _b_.isinstance(item,set)){_b_.hash(item)}
+var eq_func=_b_.getattr(item,'__eq__')
+for(var i=0,_len_i=self.$items.length;i < _len_i;i++){if(_.getattr(self.$items[i],'__eq__')(item))return true}
+return false}
+$SetDict.__eq__=function(self,other){
+if(other===undefined)return self===set
+if(_.isinstance(other,_.set)){if(other.$items.length==self.$items.length){for(var i=0,_len_i=self.$items.length;i < _len_i;i++){if($SetDict.__contains__(self,other.$items[i])===false)return false}
+return true}
+return false}
+if(_.isinstance(other,[_.list])){if(_.len(other)!=self.$items.length)return false
+for(var i=0,_len_i=_.len(other);i < _len_i;i++){var _value=getattr(other,'__getitem__')(i)
+if($SetDict.__contains__(self,_value)===false)return false}
+return true}
+if(_.hasattr(other,'__iter__')){
+if(_.len(other)!=self.$items.length)return false
+var _it=_.iter(other)
+while(1){try{
+var e=_.next(_it)
+if(!$SetDict.__contains__(self,e))return false}catch(err){if(err.__name__=="StopIteration"){break}
+throw err}}
+return true}
+return false}
+$SetDict.__format__=function(self,format_string){return $SetDict.__str__(self)}
+$SetDict.__ge__=function(self,other){if(_b_.isinstance(other,[set,frozenset])){return !$SetDict.__lt__(self,other)}else{return _b_.object.$dict.__ge__(self,other)}}
+$SetDict.__gt__=function(self,other){if(_b_.isinstance(other,[set,frozenset])){return !$SetDict.__le__(self,other)}else{return _b_.object.$dict.__gt__(self,other)}}
+$SetDict.__init__=function(self){var $=$B.args('__init__',2,{self:null,iterable:null},['self','iterable'],arguments,{iterable:[]},null,null),self=$.self,iterable=$.iterable
+if(_.isinstance(iterable,[set,frozenset])){self.$items=iterable.$items
+return $N}
+var it=_b_.iter(iterable),obj={$items:[],$str:true,$num:true}
+while(1){try{var item=_.next(it)
+$SetDict.add(obj,item)}catch(err){if(_b_.isinstance(err,_b_.StopIteration)){break}
+throw err}}
+self.$items=obj.$items
+return $N}
+var $set_iterator=$B.$iterator_class('set iterator')
+$SetDict.__iter__=function(self){var it=$B.$iterator(self.$items,$set_iterator),len=self.$items.length,nxt=it.__next__
+it.__next__=function(){if(it.__len__()!=len){throw _b_.RuntimeError("size changed during iteration")}
+return nxt()}
+return it}
+$SetDict.__le__=function(self,other){if(_b_.isinstance(other,[set,frozenset])){var cfunc=_.getattr(other,'__contains__')
+for(var i=0,_len_i=self.$items.length;i < _len_i;i++){if(!cfunc(self.$items[i]))return false}
+return true}else{return _b_.object.$dict.__le__(self,other)}}
+$SetDict.__len__=function(self){return self.$items.length}
+$SetDict.__lt__=function(self,other){if(_b_.isinstance(other,[set,frozenset])){return($SetDict.__le__(self,other)&&
+$SetDict.__len__(self)<_.getattr(other,'__len__')())}else{return _b_.object.$dict['__lt__'](self,other)}}
+$SetDict.__mro__=[$SetDict,_.object.$dict]
+$SetDict.__ne__=function(self,other){return !$SetDict.__eq__(self,other)}
+$SetDict.__or__=function(self,other,accept_iter){
+var res=clone(self)
+var func=_.getattr(_.iter(other),'__next__')
+while(1){try{$SetDict.add(res,func())}
+catch(err){if(_.isinstance(err,_.StopIteration)){break}
+throw err}}
+res.__class__=self.__class__
+return res}
+$SetDict.__str__=$SetDict.toString=$SetDict.__repr__=function(self){frozen=self.$real==='frozen'
+self.$cycle=self.$cycle===undefined ? 0 : self.$cycle+1
+if(self.$items.length===0){if(frozen)return 'frozenset()'
+return 'set()'}
+var klass_name=$B.get_class(self).__name__,head=klass_name+'({',tail='})'
+if(head=='set('){head='{';tail='}'}
+var res=[]
+if(self.$cycle){self.$cycle--
+return klass_name+'(...)'}
+for(var i=0,_len_i=self.$items.length;i < _len_i;i++){var r=_.repr(self.$items[i])
+if(r===self||r===self.$items[i]){res.push('{...}')}
+else{res.push(r)}}
+res=res.join(', ')
+self.$cycle--
+return head+res+tail}
+$SetDict.__sub__=function(self,other,accept_iter){
+$test(accept_iter,other,'-')
+var res=create_type(self)
+var cfunc=_.getattr(other,'__contains__')
+for(var i=0,_len_i=self.$items.length;i < _len_i;i++){if(!cfunc(self.$items[i])){res.$items.push(self.$items[i])}}
+return res}
+$SetDict.__xor__=function(self,other,accept_iter){
+$test(accept_iter,other,'^')
+var res=create_type(self)
+var cfunc=_.getattr(other,'__contains__')
+for(var i=0,_len_i=self.$items.length;i < _len_i;i++){if(!cfunc(self.$items[i])){$SetDict.add(res,self.$items[i])}}
+for(var i=0,_len_i=other.$items.length;i < _len_i;i++){if(!$SetDict.__contains__(self,other.$items[i])){$SetDict.add(res,other.$items[i])}}
+return res}
+function $test(accept_iter,other,op){if(accept_iter===undefined && !_.isinstance(other,[set,frozenset])){throw _b_.TypeError("unsupported operand type(s) for "+op+
+": 'set' and '"+$B.get_class(other).__name__+"'")}}
+$B.make_rmethods($SetDict)
+$SetDict.add=function(){var $=$B.args('add',2,{self:null,item:null},['self','item'],arguments,{},null,null),self=$.self,item=$.item
+_b_.hash(item)
+if(self.$str && !(typeof item=='string')){self.$str=false}
+if(self.$num && !(typeof item=='number')){self.$num=false}
+if(self.$num||self.$str){if(self.$items.indexOf(item)==-1){self.$items.push(item)}
+return $N}
+var cfunc=_.getattr(item,'__eq__')
+for(var i=0,_len_i=self.$items.length;i < _len_i;i++){if(cfunc(self.$items[i]))return}
+self.$items.push(item)
+return $N}
+$SetDict.clear=function(){var $=$B.args('clear',1,{self:null},['self'],arguments,{},null,null)
+$.self.$items=[];
+return $N}
+$SetDict.copy=function(){var $=$B.args('copy',1,{self:null},['self'],arguments,{},null,null)
+if(_b_.isinstance($.self,frozenset)){return $.self}
+var res=set()
+for(var i=0,_len_i=$.self.$items.length;i < _len_i;i++){res.$items[i]=$.self.$items[i]}
+return res}
+$SetDict.difference_update=function(self){var $=$B.args('difference_update',1,{self:null},['self'],arguments,{},'args',null)
+for(var i=0;i<$.args.length;i++){var s=set($.args[i]),_next=_b_.getattr(_b_.iter(s),'__next__'),item
+while(true){try{item=_next()
+var _type=typeof item
+if(_type=='string' ||_type=="number"){var _index=self.$items.indexOf(item)
+if(_index > -1){self.$items.splice(_index,1)}}else{
+for(var j=0;j < self.$items.length;j++){if(getattr(self.$items[j],'__eq__')(item)){self.$items.splice(j,1)}}}}catch(err){if(_b_.isinstance(err,_b_.StopIteration)){break}
+throw err}}}
+return $N}
+$SetDict.discard=function(){var $=$B.args('discard',2,{self:null,item:null},['self','item'],arguments,{},null,null)
+try{$SetDict.remove($.self,$.item)}
+catch(err){if(!_b_.isinstance(err,[_b_.KeyError,_b_.LookupError])){throw err}}
+return $N}
+$SetDict.intersection_update=function(){
+var $=$B.args('intersection_update',1,{self:null},['self'],arguments,{},'args',null),self=$.self
+for(var i=0;i<$.args.length;i++){var remove=[],s=set($.args[i])
+for(var j=0;j<self.$items.length;j++){var _item=self.$items[j],_type=typeof _item
+if(_type=='string' ||_type=="number"){if(s.$items.indexOf(_item)==-1){remove.push(j)}}else{var found=false
+for(var k=0;!found && k < s.$items.length;k++){if(_b_.getattr(s.$items[k],'__eq__')(_item)){found=true}}
+if(!found){remove.push(j)}}}
+remove.sort().reverse()
+for(var j=0;j<remove.length;j++){self.$items.splice(remove[j],1)}}
+return $N}
+$SetDict.isdisjoint=function(){var $=$B.args('is_disjoint',2,{self:null,other:null},['self','other'],arguments,{},null,null)
+for(var i=0,_len_i=$.self.$items.length;i < _len_i;i++){if(_.getattr($.other,'__contains__')($.self.$items[i]))return false}
+return true}
+$SetDict.pop=function(self){if(self.$items.length===0)throw _.KeyError('pop from an empty set')
+return self.$items.pop()}
+$SetDict.remove=function(self,item){
+var $=$B.args('remove',2,{self:null,item:null},['self','item'],arguments,{},null,null),self=$.self,item=$.item
+if(!_b_.isinstance(item,set)){_b_.hash(item)}
+if(typeof item=='string' ||typeof item=='number'){var _i=self.$items.indexOf(item)
+if(_i==-1)throw _.KeyError(item)
+self.$items.splice(_i,1)
+return $N}
+for(var i=0,_len_i=self.$items.length;i < _len_i;i++){if(_.getattr(self.$items[i],'__eq__')(item)){self.$items.splice(i,1)
+return $N}}
+throw _.KeyError(item)}
+$SetDict.symmetric_difference_update=function(self,s){
+var $=$B.args('symmetric_difference_update',2,{self:null,s:null},['self','s'],arguments,{},null,null),self=$.self,s=$.s
+var _next=_b_.getattr(_b_.iter(s),'__next__'),item,remove=[],add=[]
+while(true){try{item=_next()
+var _type=typeof item
+if(_type=='string' ||_type=="number"){var _index=self.$items.indexOf(item)
+if(_index > -1){remove.push(_index)}else{add.push(item)}}else{
+var found=false
+for(var j=0;!found && j < self.$items.length;j++){if(_b_.getattr(self.$items[j],'__eq__')(item)){remove.push(j)
+found=true}}
+if(!found){add.push(item)}}}catch(err){if(_b_.isinstance(err,_b_.StopIteration)){break}
+throw err}}
+remove.sort().reverse()
+for(var i=0;i<remove.length;i++){if(remove[i]!=remove[i-1]){self.$items.splice(remove[i],1)}}
+for(var i=0;i<add.length;i++){$SetDict.add(self,add[i])}
+return $N}
+$SetDict.update=function(self){
+var $=$B.args('update',1,{self:null},['self'],arguments,{},'args',null)
+for(var i=0;i<$.args.length;i++){var other=set($.args[i])
+for(var j=0,_len=other.$items.length;j < _len;j++){$SetDict.add(self,other.$items[j])}}
+return $N}
+$SetDict.difference=function(){var $=$B.args('difference',1,{self:null},['self'],arguments,{},'args',null)
+if($.args.length==0){return $SetDict.copy($.self)}
+var res=clone($.self)
+for(var i=0;i<$.args.length;i++){res=$SetDict.__sub__(res,set($.args[i]))}
+return res}
+var fc=$SetDict.difference+'' 
+eval('$SetDict.intersection = '+
+fc.replace(/difference/g,'intersection').replace('__sub__','__and__'))
+eval('$SetDict.symmetric_difference = '+
+fc.replace(/difference/g,'symmetric_difference').replace('__sub__','__xor__'))
+eval('$SetDict.issubset = '+
+fc.replace(/difference/g,'issubset').replace('__sub__','__le__'))
+eval('$SetDict.issuperset = '+
+fc.replace(/difference/g,'issuperset').replace('__sub__','__ge__'))
+eval('$SetDict.union = '+
+fc.replace(/difference/g,'union').replace('__sub__','__or__'))
+function set(){
+var res={__class__:$SetDict,$str:true,$num:true,$items:[]}
+var args=[res].concat(Array.prototype.slice.call(arguments))
+$SetDict.__init__.apply(null,args)
+return res}
+set.__class__=$B.$factory
+set.$dict=$SetDict
+$SetDict.$factory=set
+$SetDict.__new__=$B.$__new__(set)
+$B.set_func_names($SetDict)
+var $FrozensetDict={__class__:$B.$type,__name__:'frozenset'}
+$FrozensetDict.__mro__=[$FrozensetDict,_.object.$dict]
+for(var attr in $SetDict){switch(attr){case 'add':
+case 'clear':
+case 'discard':
+case 'pop':
+case 'remove':
+case 'update':
+break
+default:
+if($FrozensetDict[attr]==undefined){if(typeof $SetDict[attr]=='function'){$FrozensetDict[attr]=(function(x){return function(){return $SetDict[x].apply(null,arguments)}})(attr)}else{$FrozensetDict[attr]=$SetDict[attr]}}}}
+$FrozensetDict.__hash__=function(self){if(self===undefined){return $FrozensetDict.__hashvalue__ ||$B.$py_next_hash-- }
+if(self.__hashvalue__ !==undefined)return self.__hashvalue__
+var _hash=1927868237
+_hash *=self.$items.length 
+for(var i=0,_len_i=self.$items.length;i < _len_i;i++){var _h=_.hash(self.$items[i])
+_hash ^=((_h ^ 89869747)^(_h << 16))* 3644798167}
+_hash=_hash * 69069 + 907133923
+if(_hash==-1)_hash=590923713
+return self.__hashvalue__=_hash}
+$FrozensetDict.__init__=function(){
+var $=$B.args('__init__',1,{self:null},['self'],arguments,{},'args','kw')
+return $N}
+var singleton_id=Math.floor(Math.random()*Math.pow(2,40))
+function empty_frozenset(){return{__class__:$FrozensetDict,$items:[],$id:singleton_id}}
+function frozenset(){var $=$B.args('frozenset',1,{iterable:null},['iterable'],arguments,{iterable:null},null,null)
+if($.iterable===null){return empty_frozenset()}
+else if($.iterable.__class__==$FrozensetDict){return $.iterable}
+var res=set($.iterable)
+if(res.$items.length==0){return empty_frozenset()}
+res.__class__=$FrozensetDict
+return res}
+frozenset.__class__=$B.$factory
+frozenset.$dict=$FrozensetDict
+$FrozensetDict.__new__=$B.$__new__(frozenset)
+$FrozensetDict.$factory=frozenset
+$B.set_func_names($FrozensetDict)
+_.set=set
+_.frozenset=frozenset})(__BRYTHON__)
+;(function($B){eval($B.InjectBuiltins())
+var $ObjectDict=_b_.object.$dict
+var JSObject=$B.JSObject
+$B.events=_b_.dict()
+function $getMouseOffset(target,ev){ev=ev ||window.event;
+var docPos=$getPosition(target);
+var mousePos=$mouseCoords(ev);
+return{x:mousePos.x - docPos.x,y:mousePos.y - docPos.y};}
+function $getPosition(e){var left=0;
+var top=0;
+var width=e.width ||e.offsetWidth;
+var height=e.height ||e.offsetHeight;
+while(e.offsetParent){left +=e.offsetLeft;
+top +=e.offsetTop;
+e=e.offsetParent;}
+left +=e.offsetLeft;
+top +=e.offsetTop;
+return{left:left,top:top,width:width,height:height};}
+function $mouseCoords(ev){var posx=0;
+var posy=0;
+if(!ev)var ev=window.event;
+if(ev.pageX ||ev.pageY){posx=ev.pageX;
+posy=ev.pageY;}else if(ev.clientX ||ev.clientY){posx=ev.clientX + document.body.scrollLeft
++ document.documentElement.scrollLeft;
+posy=ev.clientY + document.body.scrollTop
++ document.documentElement.scrollTop;}
+var res={}
+res.x=_b_.int(posx)
+res.y=_b_.int(posy)
+res.__getattr__=function(attr){return this[attr]}
+res.__class__="MouseCoords"
+return res}
+var $DOMNodeAttrs=['nodeName','nodeValue','nodeType','parentNode','childNodes','firstChild','lastChild','previousSibling','nextSibling','attributes','ownerDocument']
+$B.$isNode=function(obj){if(obj===document){return true}
+for(var i=0;i<$DOMNodeAttrs.length;i++){if(obj[$DOMNodeAttrs[i]]===undefined)return false}
+return true}
+$B.$isNodeList=function(nodes){
+try{var result=Object.prototype.toString.call(nodes);
+var re=new RegExp("^\\[object (HTMLCollection|NodeList)\\]$")
+return(typeof nodes==='object'
+&& re.exec(result)!==null
+&& nodes.hasOwnProperty('length')
+&&(nodes.length==0 ||(typeof nodes[0]==="object" && nodes[0].nodeType > 0))
+)}catch(err){return false}}
+var $DOMEventAttrs_W3C=['NONE','CAPTURING_PHASE','AT_TARGET','BUBBLING_PHASE','type','target','currentTarget','eventPhase','bubbles','cancelable','timeStamp','stopPropagation','preventDefault','initEvent']
+var $DOMEventAttrs_IE=['altKey','altLeft','button','cancelBubble','clientX','clientY','contentOverflow','ctrlKey','ctrlLeft','data','dataFld','dataTransfer','fromElement','keyCode','nextPage','offsetX','offsetY','origin','propertyName','reason','recordset','repeat','screenX','screenY','shiftKey','shiftLeft','source','srcElement','srcFilter','srcUrn','toElement','type','url','wheelDelta','x','y']
+$B.$isEvent=function(obj){var flag=true
+for(var i=0;i<$DOMEventAttrs_W3C.length;i++){if(obj[$DOMEventAttrs_W3C[i]]===undefined){flag=false;break}}
+if(flag)return true
+for(var i=0;i<$DOMEventAttrs_IE.length;i++){if(obj[$DOMEventAttrs_IE[i]]===undefined)return false}
+return true}
+var $NodeTypes={1:"ELEMENT",2:"ATTRIBUTE",3:"TEXT",4:"CDATA_SECTION",5:"ENTITY_REFERENCE",6:"ENTITY",7:"PROCESSING_INSTRUCTION",8:"COMMENT",9:"DOCUMENT",10:"DOCUMENT_TYPE",11:"DOCUMENT_FRAGMENT",12:"NOTATION"}
+var $DOMEventDict={__class__:$B.$type,__name__:'DOMEvent'}
+$DOMEventDict.__mro__=[$DOMEventDict,$ObjectDict]
+$DOMEventDict.__getattribute__=function(self,attr){switch(attr){case 'x':
+return $mouseCoords(self).x
+case 'y':
+return $mouseCoords(self).y
+case 'data':
+if(self.dataTransfer!==undefined)return $Clipboard(self.dataTransfer)
+return self['data']
+case 'target':
+if(self.target===undefined)return DOMNode(self.target)
+return DOMNode(self.target)
+case 'char':
+return String.fromCharCode(self.which)}
+var res=self[attr]
+if(res!==undefined){if(typeof res=='function'){var func=function(){return res.apply(self,arguments)}
+func.$infos={__name__:res.toString().substr(9,res.toString().search('{'))}
+return func}
+return $B.$JS2Py(res)}
+throw _b_.AttributeError("object DOMEvent has no attribute '"+attr+"'")}
+function $DOMEvent(ev){ev.__class__=$DOMEventDict
+if(ev.preventDefault===undefined){ev.preventDefault=function(){ev.returnValue=false}}
+if(ev.stopPropagation===undefined){ev.stopPropagation=function(){ev.cancelBubble=true}}
+ev.__repr__=function(){return '<DOMEvent object>'}
+ev.toString=ev.__str__=ev.__repr__
+return ev}
+$B.$DOMEvent=$DOMEvent
+$B.DOMEvent=function(evt_name){
+return $DOMEvent(new Event(evt_name))}
+$B.DOMEvent.__class__=$B.$factory
+$B.DOMEvent.$dict=$DOMEventDict
+$DOMEventDict.$factory=$B.DOMEvent
+var $ClipboardDict={__class__:$B.$type,__name__:'Clipboard'}
+$ClipboardDict.__getitem__=function(self,name){return self.data.getData(name)}
+$ClipboardDict.__mro__=[$ClipboardDict,$ObjectDict]
+$ClipboardDict.__setitem__=function(self,name,value){self.data.setData(name,value)}
+function $Clipboard(data){
+return{
+data : data,__class__ : $ClipboardDict,}}
+function $EventsList(elt,evt,arg){
+this.elt=elt
+this.evt=evt
+if(isintance(arg,list)){this.callbacks=arg}
+else{this.callbacks=[arg]}
+this.remove=function(callback){var found=false
+for(var i=0;i<this.callbacks.length;i++){if(this.callbacks[i]===callback){found=true
+this.callback.splice(i,1)
+this.elt.removeEventListener(this.evt,callback,false)
+break}}
+if(!found){throw KeyError("not found")}}}
+function $OpenFile(file,mode,encoding){this.reader=new FileReader()
+if(mode==='r'){this.reader.readAsText(file,encoding)}
+else if(mode==='rb'){this.reader.readAsBinaryString(file)}
+this.file=file
+this.__class__=dom.FileReader
+this.__getattr__=function(attr){if(this['get_'+attr]!==undefined)return this['get_'+attr]
+return this.reader[attr]}
+this.__setattr__=(function(obj){return function(attr,value){if(attr.substr(0,2)=='on'){
+if(window.addEventListener){var callback=function(ev){return value($DOMEvent(ev))}
+obj.addEventListener(attr.substr(2),callback)}else if(window.attachEvent){var callback=function(ev){return value($DOMEvent(window.event))}
+obj.attachEvent(attr,callback)}}else if('set_'+attr in obj){return obj['set_'+attr](value)}
+else if(attr in obj){obj[attr]=value}
+else{setattr(obj,attr,value)}}})(this.reader)}
+var dom={File : function(){},FileReader : function(){}}
+dom.File.__class__=$B.$type
+dom.File.__str__=function(){return "<class 'File'>"}
+dom.FileReader.__class__=$B.$type
+dom.FileReader.__str__=function(){return "<class 'FileReader'>"}
+function $Options(parent){return{
+__class__:$OptionsDict,parent:parent}}
+var $OptionsDict={__class__:$B.$type,__name__:'Options'}
+$OptionsDict.__delitem__=function(self,arg){self.parent.options.remove(arg.elt)}
+$OptionsDict.__getitem__=function(self,key){return DOMNode(self.parent.options[key])}
+$OptionsDict.__len__=function(self){return self.parent.options.length}
+$OptionsDict.__mro__=[$OptionsDict,$ObjectDict]
+$OptionsDict.__setattr__=function(self,attr,value){self.parent.options[attr]=value}
+$OptionsDict.__setitem__=function(self,attr,value){self.parent.options[attr]=$B.$JS2Py(value)}
+$OptionsDict.__str__=function(self){return "<object Options wraps "+self.parent.options+">"}
+$OptionsDict.append=function(self,element){self.parent.options.add(element.elt)}
+$OptionsDict.insert=function(self,index,element){if(index===undefined){self.parent.options.add(element.elt)}
+else{self.parent.options.add(element.elt,index)}}
+$OptionsDict.item=function(self,index){return self.parent.options.item(index)}
+$OptionsDict.namedItem=function(self,name){return self.parent.options.namedItem(name)}
+$OptionsDict.remove=function(self,arg){self.parent.options.remove(arg.elt)}
+var $StyleDict={__class__:$B.$type,__name__:'CSSProperty'}
+$StyleDict.__mro__=[$StyleDict,$ObjectDict]
+$StyleDict.__getattr__=function(self,attr){return $ObjectDict.__getattribute__(self.js,attr)}
+$StyleDict.__setattr__=function(self,attr,value){if(attr.toLowerCase()==='float'){self.js.cssFloat=value
+self.js.styleFloat=value}else{switch(attr){case 'top':
+case 'left':
+case 'height':
+case 'width':
+case 'borderWidth':
+if(isinstance(value,_b_.int))value=value+'px'}
+self.js[attr]=value}}
+function $Style(style){
+return{__class__:$StyleDict,js:style}}
+$Style.__class__=$B.$factory
+$Style.$dict=$StyleDict
+$StyleDict.$factory=$Style
+var DOMNode=$B.DOMNode=function(elt){
+var res={}
+res.$dict={}
+res.elt=elt 
+if(elt['$brython_id']===undefined||elt.nodeType===9){
+elt.$brython_id='DOM-'+$B.UUID()
+res.__repr__=res.__str__=res.toString=function(){var res="<DOMNode object type '"
+return res+$NodeTypes[elt.nodeType]+"' name '"+elt.nodeName+"'>"}}
+res.__class__=DOMNodeDict
+return res}
+DOMNodeDict={__class__ : $B.$type,__name__ : 'DOMNode'}
+DOMNode.__class__=$B.$factory
+DOMNode.$dict=DOMNodeDict 
+DOMNodeDict.$factory=DOMNode
+DOMNodeDict.__mro__=[DOMNodeDict,_b_.object.$dict]
+DOMNodeDict.__add__=function(self,other){
+var res=$TagSum()
+res.children=[self],pos=1
+if(isinstance(other,$TagSum)){res.children=res.children.concat(other.children)}else if(isinstance(other,[_b_.str,_b_.int,_b_.float,_b_.list,_b_.dict,_b_.set,_b_.tuple])){res.children[pos++]=DOMNode(document.createTextNode(_b_.str(other)))}else if(isinstance(other,DOMNode)){res.children[pos++]=other}else{
+try{res.children=res.children.concat(_b_.list(other))}
+catch(err){throw _b_.TypeError("can't add '"+
+$B.get_class(other).__name__+"' object to DOMNode instance")}}
+return res}
+DOMNodeDict.__bool__=function(self){return true}
+DOMNodeDict.__class__=$B.$type
+DOMNodeDict.__contains__=function(self,key){try{DOMNodeDict.__getitem__(self,key);return True}
+catch(err){return False}}
+DOMNodeDict.__del__=function(self){
+if(!self.elt.parentNode){throw _b_.ValueError("can't delete "+str(elt))}
+self.elt.parentNode.removeChild(self.elt)}
+DOMNodeDict.__delitem__=function(self,key){if(self.elt.nodeType===9){
+var res=self.elt.getElementById(key)
+if(res){res.parentNode.removeChild(res)}
+else{throw KeyError(key)}}else{
+console.log('delitem')
+self.elt.parentNode.removeChild(self.elt)}}
+DOMNodeDict.__eq__=function(self,other){return self.elt==other.elt}
+DOMNodeDict.__getattribute__=function(self,attr){switch(attr){case 'class_name':
+case 'children':
+case 'html':
+case 'id':
+case 'parent':
+case 'query':
+case 'text':
+case 'value':
+return DOMNodeDict[attr](self)
+case 'height':
+case 'left':
+case 'top':
+case 'width':
+if(self.elt instanceof SVGElement){return self.elt.getAttributeNS(null,attr)}
+return DOMNodeDict[attr].__get__(self)
+break
+case 'clear':
+case 'closest':
+case 'remove':
+return function(){return DOMNodeDict[attr](self,arguments[0])}
+case 'headers':
+if(self.elt.nodeType==9){
+var req=new XMLHttpRequest();
+req.open('GET',document.location,false);
+req.send(null);
+var headers=req.getAllResponseHeaders();
+headers=headers.split('\r\n')
+var res=_b_.dict()
+for(var i=0;i<headers.length;i++){var header=headers[i]
+if(header.strip().length==0){continue}
+var pos=header.search(':')
+res.__setitem__(header.substr(0,pos),header.substr(pos+1).lstrip())}
+return res;}
+break
+case '$$location':
+attr='location'
+break}
+if(self.elt.getAttribute!==undefined){res=self.elt.getAttribute(attr)
+if(res!==undefined&&res!==null&&self.elt[attr]===undefined){
+return res}}
+if(self.elt.getAttributeNS!==undefined){res=self.elt.getAttributeNS(null,attr)
+if(res!==undefined && res!==null && res!="" &&
+self.elt[attr]===undefined){
+return res}}
+if(self.elt[attr]!==undefined){res=self.elt[attr]
+if(typeof res==="function"){var func=(function(f,elt){return function(){var args=[],pos=0
+for(var i=0;i<arguments.length;i++){var arg=arguments[i]
+if(isinstance(arg,JSObject)){args[pos++]=arg.js}else if(isinstance(arg,DOMNode)){args[pos++]=arg.elt}else if(arg===_b_.None){args[pos++]=null}else{args[pos++]=arg}}
+var result=f.apply(elt,args)
+return $B.$JS2Py(result)}})(res,self.elt)
+func.__name__=attr
+return func}
+if(attr=='options')return $Options(self.elt)
+if(attr=='style')return $Style(self.elt[attr])
+return $B.JSObject(self.elt[attr])}
+return $ObjectDict.__getattribute__(self,attr)}
+DOMNodeDict.__getitem__=function(self,key){if(self.elt.nodeType===9){
+if(typeof key==="string"){var res=self.elt.getElementById(key)
+if(res)return DOMNode(res)
+throw KeyError(key)}else{try{var elts=self.elt.getElementsByTagName(key.$dict.__name__),res=[],pos=0
+for(var $i=0;$i<elts.length;$i++)res[pos++]=DOMNode(elts[$i])
+return res}catch(err){throw KeyError(str(key))}}}else{throw _b_.TypeError('DOMNode object is not subscriptable')}}
+DOMNodeDict.__iter__=function(self){
+self.$counter=-1
+return self}
+DOMNodeDict.__le__=function(self,other){
+var elt=self.elt
+if(self.elt.nodeType===9){elt=self.elt.body}
+if(isinstance(other,$TagSum)){var $i=0
+for($i=0;$i<other.children.length;$i++){elt.appendChild(other.children[$i].elt)}}else if(typeof other==="string" ||typeof other==="number"){var $txt=document.createTextNode(other.toString())
+elt.appendChild($txt)}else if(isinstance(other,DOMNode)){
+elt.appendChild(other.elt)}else{try{
+var items=_b_.list(other)
+for(var i=0;i<items.length;i++){DOMNodeDict.__le__(self,items[i])}}catch(err){throw _b_.TypeError("can't add '"+
+$B.get_class(other).__name__+
+"' object to DOMNode instance")}}}
+DOMNodeDict.__len__=function(self){return self.elt.childNodes.length}
+DOMNodeDict.__mul__=function(self,other){if(isinstance(other,_b_.int)&& other.valueOf()>0){var res=$TagSum()
+var pos=res.children.length
+for(var i=0;i<other.valueOf();i++){res.children[pos++]=DOMNodeDict.clone(self)()}
+return res}
+throw _b_.ValueError("can't multiply "+self.__class__+"by "+other)}
+DOMNodeDict.__ne__=function(self,other){return !DOMNodeDict.__eq__(self,other)}
+DOMNodeDict.__next__=function(self){self.$counter++
+if(self.$counter<self.elt.childNodes.length){return DOMNode(self.elt.childNodes[self.$counter])}
+throw _b_.StopIteration('StopIteration')}
+DOMNodeDict.__radd__=function(self,other){
+var res=$TagSum()
+var txt=DOMNode(document.createTextNode(other))
+res.children=[txt,self]
+return res}
+DOMNodeDict.__str__=DOMNodeDict.__repr__=function(self){if(self===undefined)return "<class 'DOMNode'>"
+var res="<DOMNode object type '"
+return res+$NodeTypes[self.elt.nodeType]+"' name '"+self.elt.nodeName+"'>"}
+DOMNodeDict.__setattr__=function(self,attr,value){if(attr.substr(0,2)=='on'){
+if(!_b_.bool(value)){
+DOMNodeDict.unbind(self,attr.substr(2))}else{
+DOMNodeDict.bind(self,attr.substr(2),value)}}else{if(DOMNodeDict['set_'+attr]!==undefined){return DOMNodeDict['set_'+attr](self,value)}
+var attr1=attr.replace('_','-').toLowerCase()
+if(self.elt instanceof SVGElement && 
+self.elt.getAttributeNS(null,attr1)!==null){self.elt.setAttributeNS(null,attr1,value)
+return}
+if(self.elt[attr1]!==undefined){self.elt[attr1]=value;return}
+if(typeof self.elt.getAttribute=='function' && 
+typeof self.elt.setAttribute=='function'){var res=self.elt.getAttribute(attr1)
+if(res!==undefined&&res!==null&&res!=''){if(value===false){self.elt.removeAttribute(attr1)}else{self.elt.setAttribute(attr1,value)}
+console.log(self.elt)
+return}}
+self.elt[attr]=value}}
+DOMNodeDict.__setitem__=function(self,key,value){self.elt.childNodes[key]=value}
+DOMNodeDict.abs_left={__get__: function(self){return $getPosition(self.elt).left},__set__: function(){throw _b_.AttributeError("'DOMNode' objectattribute 'abs_left' is read-only")}}
+DOMNodeDict.abs_top={__get__: function(self){return $getPosition(self.elt).top},__set__: function(){throw _b_.AttributeError("'DOMNode' objectattribute 'abs_top' is read-only")}}
+DOMNodeDict.bind=function(self,event){
+var _id
+if(self.elt.nodeType===9){_id=0}
+else{_id=self.elt.$brython_id}
+var _d=_b_.dict.$dict
+if(!_d.__contains__($B.events,_id)){_d.__setitem__($B.events,_id,dict())}
+var item=_d.__getitem__($B.events,_id)
+if(!_d.__contains__(item,event)){_d.__setitem__(item,event,[])}
+var evlist=_d.__getitem__(item,event)
+var pos=evlist.length
+for(var i=2;i<arguments.length;i++){var func=arguments[i]
+var callback=(function(f){return function(ev){try{return f($DOMEvent(ev))}catch(err){if(err.__class__!==undefined){var msg=_b_.getattr(err,'info')+
+'\n'+err.__class__.__name__
+if(err.args){msg +=': '+err.args[0]}
+try{getattr($B.stderr,"write")(msg)}
+catch(err){console.log(msg)}}else{try{getattr($B.stderr,"write")(err)}
+catch(err1){console.log(err)}}}}}
+)(func)
+if(window.addEventListener){self.elt.addEventListener(event,callback,false)}else if(window.attachEvent){self.elt.attachEvent("on"+event,callback)}
+evlist[pos++]=[func,callback]}
+return self}
+DOMNodeDict.children=function(self){var res=[],pos=0
+for(var i=0;i<self.elt.childNodes.length;i++){res[pos++]=DOMNode(self.elt.childNodes[i])}
+return res}
+DOMNodeDict.clear=function(self){
+var elt=self.elt
+if(elt.nodeType==9){elt=elt.body}
+for(var i=elt.childNodes.length-1;i>=0;i--){elt.removeChild(elt.childNodes[i])}}
+DOMNodeDict.Class=function(self){if(self.elt.className !==undefined)return self.elt.className
+return None}
+DOMNodeDict.class_name=function(self){return DOMNodeDict.Class(self)}
+DOMNodeDict.clone=function(self){res=DOMNode(self.elt.cloneNode(true))
+res.elt.$brython_id='DOM-' + $B.UUID()
+var _d=_b_.dict.$dict
+if(_d.__contains__($B.events,self.elt.$brython_id)){var events=_d.__getitem__($B.events,self.elt.$brython_id)
+var items=_b_.list(_d.items(events))
+for(var i=0;i<items.length;i++){var event=items[i][0]
+for(var j=0;j<items[i][1].length;j++){DOMNodeDict.bind(res,event,items[i][1][j][0])}}}
+return res}
+DOMNodeDict.closest=function(self,tagName){
+var res=self.elt,tagName=tagName.toLowerCase()
+while(res.tagName.toLowerCase()!=tagName){res=res.parentNode
+if(res===undefined){throw _b_.KeyError('no parent of type '+tagName)}}
+return DOMNode(res)}
+DOMNodeDict.events=function(self,event){var _id
+if(self.elt.nodeType===9){_id=0}
+else{_id=self.elt.$brython_id}
+var _d=_b_.dict.$dict
+if(!_d.__contains__($B.events,_id)){return[]}
+var item=_d.__getitem__($B.events,_id)
+if(!_d.__contains__(item,event)){return[]}
+var evt_list=_d.__getitem__(item,event),callbacks=[]
+for(var i=0;i<evt_list.length;i++){callbacks.push(evt_list[i][1])}
+return callbacks}
+DOMNodeDict.focus=function(self){return(function(obj){return function(){
+setTimeout(function(){obj.focus();},10)}})(self.elt)}
+DOMNodeDict.get=function(self){
+var obj=self.elt
+var args=[],pos=0
+for(var i=1;i<arguments.length;i++){args[pos++]=arguments[i]}
+var $ns=$B.args('get',0,{},[],args,{},null,'kw')
+var $dict={}
+var items=_b_.list(_b_.dict.$dict.items($ns['kw']))
+for(var i=0;i<items.length;i++){$dict[items[i][0]]=items[i][1]}
+if($dict['name']!==undefined){if(obj.getElementsByName===undefined){throw _b_.TypeError("DOMNode object doesn't support selection by name")}
+var res=[],pos=0
+var node_list=document.getElementsByName($dict['name'])
+if(node_list.length===0)return[]
+for(var i=0;i<node_list.length;i++)res[pos++]=DOMNode(node_list[i])}
+if($dict['tag']!==undefined){if(obj.getElementsByTagName===undefined){throw _b_.TypeError("DOMNode object doesn't support selection by tag name")}
+var res=[],pos=0
+var node_list=document.getElementsByTagName($dict['tag'])
+if(node_list.length===0)return[]
+for(var i=0;i<node_list.length;i++)res[pos++]=DOMNode(node_list[i])}
+if($dict['classname']!==undefined){if(obj.getElementsByClassName===undefined){throw _b_.TypeError("DOMNode object doesn't support selection by class name")}
+var res=[],pos=0
+var node_list=document.getElementsByClassName($dict['classname'])
+if(node_list.length===0)return[]
+for(var i=0;i<node_list.length;i++)res[pos++]=DOMNode(node_list[i])}
+if($dict['id']!==undefined){if(obj.getElementById===undefined){throw _b_.TypeError("DOMNode object doesn't support selection by id")}
+var id_res=obj.getElementById($dict['id'])
+if(!id_res)return[]
+return[DOMNode(id_res)]}
+if($dict['selector']!==undefined){if(obj.querySelectorAll===undefined){throw _b_.TypeError("DOMNode object doesn't support selection by selector")}
+var node_list=obj.querySelectorAll($dict['selector'])
+var sel_res=[],pos=0
+if(node_list.length===0)return[]
+for(var i=0;i<node_list.length;i++)sel_res[pos++]=DOMNode(node_list[i])
+if(res===undefined)return sel_res
+var to_delete=[],pos=0
+for(var i=0;i<res.length;i++){var elt=res[i],
+flag=false
+for(var j=0;j<sel_res.length;j++){if(elt.__eq__(sel_res[j])){flag=true;break}}
+if(!flag){to_delete[pos++]=i}}
+for(var i=to_delete.length-1;i>=0;i--)res.splice(to_delete[i],1)}
+return res}
+DOMNodeDict.getContext=function(self){
+if(!('getContext' in self.elt)){throw _b_.AttributeError("object has no attribute 'getContext'")}
+var obj=self.elt
+return function(ctx){return JSObject(obj.getContext(ctx))}}
+DOMNodeDict.getSelectionRange=function(self){
+if(self.elt['getSelectionRange']!==undefined){return self.elt.getSelectionRange.apply(null,arguments)}}
+DOMNodeDict.height={'__get__': function(self){
+if(self.elt.tagName=='CANVAS'){return self.elt.height}
+var res=parseInt(self.elt.style.height)
+if(isNaN(res)){return self.elt.offsetHeight}
+return res},'__set__': function(obj,self,value){if(self.elt.tagName=='CANVAS'){self.elt.height=value}
+self.elt.style.height=value+'px'}}
+DOMNodeDict.html=function(self){return self.elt.innerHTML}
+DOMNodeDict.id=function(self){if(self.elt.id !==undefined)return self.elt.id
+return None}
+DOMNodeDict.inside=function(self,other){
+other=other.elt
+var elt=self.elt
+while(true){if(other===elt){return true}
+elt=elt.parentElement
+if(!elt){return false}}}
+DOMNodeDict.options=function(self){
+return new $OptionsClass(self.elt)}
+DOMNodeDict.parent=function(self){if(self.elt.parentElement)return DOMNode(self.elt.parentElement)
+return None}
+DOMNodeDict.left={'__get__': function(self){var res=parseInt(self.elt.style.left)
+if(isNaN(res)){throw _b_.AttributeError("node has no attribute 'left'")}
+return res},'__set__': function(obj,self,value){self.elt.style.left=value+'px'}}
+DOMNodeDict.remove=function(self,child){
+var elt=self.elt,flag=false,ch_elt=child.elt
+if(self.elt.nodeType==9){elt=self.elt.body}
+while(ch_elt.parentElement){if(ch_elt.parentElement===elt){elt.removeChild(ch_elt)
+flag=true
+break}else{ch_elt=ch_elt.parentElement}}
+if(!flag){throw _b_.ValueError('element '+child+' is not inside '+self)}}
+DOMNodeDict.reset=function(self){
+return function(){self.elt.reset()}}
+DOMNodeDict.style=function(self){
+self.elt.style.float=self.elt.style.cssFloat ||self.style.styleFloat
+return $B.JSObject(self.elt.style)}
+DOMNodeDict.top={'__get__': function(self){var res=parseInt(self.elt.style.top)
+if(isNaN(res)){throw _b_.AttributeError("node has no attribute 'top'")}
+return res},'__set__': function(obj,self,value){self.elt.style.top=value+'px'}}
+DOMNodeDict.setSelectionRange=function(self){
+if(this['setSelectionRange']!==undefined){return(function(obj){return function(){return obj.setSelectionRange.apply(obj,arguments)}})(this)}else if(this['createTextRange']!==undefined){return(function(obj){return function(start_pos,end_pos){if(end_pos==undefined){end_pos=start_pos}
+var range=obj.createTextRange();
+range.collapse(true);
+range.moveEnd('character',start_pos);
+range.moveStart('character',end_pos);
+range.select();}})(this)}}
+DOMNodeDict.set_class_name=function(self,arg){self.elt.setAttribute('class',arg)}
+DOMNodeDict.set_html=function(self,value){self.elt.innerHTML=str(value)}
+DOMNodeDict.set_style=function(self,style){
+if(!_b_.isinstance(style,_b_.dict)){throw TypeError('style must be dict, not '+$B.get_class(style).__name__)}
+var items=_b_.list(_b_.dict.$dict.items(style))
+for(var i=0;i<items.length;i++){var key=items[i][0],value=items[i][1]
+if(key.toLowerCase()==='float'){self.elt.style.cssFloat=value
+self.elt.style.styleFloat=value}else{switch(key){case 'top':
+case 'left':
+case 'width':
+case 'borderWidth':
+if(isinstance(value,_b_.int)){value=value+'px'}}
+self.elt.style[key]=value}}}
+DOMNodeDict.set_text=function(self,value){self.elt.innerText=str(value)
+self.elt.textContent=str(value)}
+DOMNodeDict.set_value=function(self,value){self.elt.value=str(value)}
+DOMNodeDict.submit=function(self){
+return function(){self.elt.submit()}}
+DOMNodeDict.text=function(self){return self.elt.innerText ||self.elt.textContent}
+DOMNodeDict.toString=function(self){if(self===undefined)return 'DOMNode'
+return self.elt.nodeName}
+DOMNodeDict.trigger=function(self,etype){
+if(self.elt.fireEvent){self.elt.fireEvent('on' + etype);}else{
+var evObj=document.createEvent('Events');
+evObj.initEvent(etype,true,false);
+self.elt.dispatchEvent(evObj);}}
+DOMNodeDict.unbind=function(self,event){
+var _id
+if(self.elt.nodeType==9){_id=0}else{_id=self.elt.$brython_id}
+if(!_b_.dict.$dict.__contains__($B.events,_id))return
+var item=_b_.dict.$dict.__getitem__($B.events,_id)
+if(event===undefined){var events=_b_.list(_b_.dict.$dict.keys(item))
+for(var i=0;i<events.length;i++){DOMNodeDict.unbind(self,events[i])}
+return}
+if(!_b_.dict.$dict.__contains__(item,event))return
+var events=_b_.dict.$dict.__getitem__(item,event)
+if(arguments.length===2){for(var i=0;i<events.length;i++){var callback=events[i][1]
+if(window.removeEventListener){self.elt.removeEventListener(event,callback,false)}else if(window.detachEvent){self.elt.detachEvent(event,callback,false)}}
+events=[]
+return}
+for(var i=2;i<arguments.length;i++){var func=arguments[i],flag=false
+for(var j=0;j<events.length;j++){if(getattr(func,'__eq__')(events[j][0])){var callback=events[j][1]
+if(window.removeEventListener){self.elt.removeEventListener(event,callback,false)}else if(window.detachEvent){self.elt.detachEvent(event,callback,false)}
+events.splice(j,1)
+flag=true
+break}}
+if(!flag){throw KeyError('missing callback for event '+event)}}}
+DOMNodeDict.value=function(self){return self.elt.value}
+DOMNodeDict.width={'__get__': function(self){
+if(self.elt.tagName=='CANVAS'){return self.elt.width}
+var res=parseInt(self.elt.style.width)
+if(isNaN(res)){
+return self.elt.offsetWidth}
+return res},'__set__': function(obj,self,value){if(self.elt.tagName=='CANVAS'){
+self.elt.width=value}
+self.elt.style.width=value+'px'}}
+var $QueryDict={__class__:$B.$type,__name__:'query'}
+$QueryDict.__contains__=function(self,key){return self._keys.indexOf(key)>-1}
+$QueryDict.__getitem__=function(self,key){
+var result=self._values[key]
+if(result===undefined)throw KeyError(key)
+if(result.length==1)return result[0]
+return result}
+var $QueryDict_iterator=$B.$iterator_class('query string iterator')
+$QueryDict.__iter__=function(self){return $B.$iterator(self._keys,$QueryDict_iterator)}
+$QueryDict.__mro__=[$QueryDict,$ObjectDict]
+$QueryDict.getfirst=function(self,key,_default){
+var result=self._values[key]
+if(result===undefined){if(_default===undefined)return None
+return _default}
+return result[0]}
+$QueryDict.getlist=function(self,key){
+var result=self._values[key]
+if(result===undefined)return[]
+return result}
+$QueryDict.getvalue=function(self,key,_default){try{return $QueryDict.__getitem__(self,key)}
+catch(err){if(_default===undefined)return None
+return _default}}
+$QueryDict.keys=function(self){return self._keys}
+DOMNodeDict.query=function(self){var res={__class__:$QueryDict,_keys :[],_values :{}}
+var qs=location.search.substr(1).split('&')
+for(var i=0;i<qs.length;i++){var pos=qs[i].search('=')
+var elts=[qs[i].substr(0,pos),qs[i].substr(pos+1)]
+var key=decodeURIComponent(elts[0])
+var value=decodeURIComponent(elts[1])
+if(res._keys.indexOf(key)>-1){res._values[key].push(value)}
+else{res._keys.push(key)
+res._values[key]=[value]}}
+return res}
+var $TagSumDict={__class__ : $B.$type,__name__:'TagSum'}
+$TagSumDict.appendChild=function(self,child){self.children.push(child)}
+$TagSumDict.__add__=function(self,other){if($B.get_class(other)===$TagSumDict){self.children=self.children.concat(other.children)}else if(isinstance(other,[_b_.str,_b_.int,_b_.float,_b_.dict,_b_.set,_b_.list])){self.children=self.children.concat(DOMNode(document.createTextNode(other)))}else{self.children.push(other)}
+return self}
+$TagSumDict.__mro__=[$TagSumDict,$ObjectDict]
+$TagSumDict.__radd__=function(self,other){var res=$TagSum()
+res.children=self.children.concat(DOMNode(document.createTextNode(other)))
+return res}
+$TagSumDict.__repr__=function(self){var res='<object TagSum> '
+for(var i=0;i<self.children.length;i++){res+=self.children[i]
+if(self.children[i].toString()=='[object Text]'){res +=' ['+self.children[i].textContent+']\n'}}
+return res}
+$TagSumDict.__str__=$TagSumDict.toString=$TagSumDict.__repr__
+$TagSumDict.clone=function(self){var res=$TagSum(),$i=0
+for($i=0;$i<self.children.length;$i++){res.children.push(self.children[$i].cloneNode(true))}
+return res}
+function $TagSum(){return{__class__:$TagSumDict,children:[],toString:function(){return '(TagSum)'}}}
+$TagSum.__class__=$B.$factory
+$TagSum.$dict=$TagSumDict
+$B.$TagSum=$TagSum 
+var win=JSObject(window)
+win.get_postMessage=function(msg,targetOrigin){if(isinstance(msg,dict)){var temp={__class__:'dict'}
+var items=_b_.list(_b_.dict.$dict.items(msg))
+for(var i=0;i<items.length;i++)temp[items[i][0]]=items[i][1]
+msg=temp}
+return window.postMessage(msg,targetOrigin)}
+$B.DOMNodeDict=DOMNodeDict
+$B.win=win})(__BRYTHON__)
+;(function($B){
+var _b_=$B.builtins
+eval($B.InjectBuiltins())
+$B.make_node=function(top_node,node){
+if(node.C.$genjs){var ctx_js=node.C.$genjs}else{var ctx_js=node.C.$genjs=node.C.to_js()}
+var is_cond=false,is_except=false,is_else=false
+if(node.locals_def){
+var iter_name=top_node.iter_id
+ctx_js='var $locals_'+iter_name+' = $B.vars["'+iter_name+'"] || {}'
+ctx_js +=', $local_name = "'+iter_name
+ctx_js +='", $locals = $locals_'+iter_name+';'
+ctx_js +='$B.vars["'+iter_name+'"] = $locals;'}
+if(node.is_catch){is_except=true;is_cond=true}
+if(node.is_except){is_except=true}
+if(node.C.type=='node'){var ctx=node.C.tree[0]
+var ctype=ctx.type
+switch(ctx.type){case 'except':
+is_except=true
+is_cond=true
+break
+case 'single_kw':
+is_cond=true
+if(ctx.token=='else')is_else=true
+if(ctx.token=='finally')is_except=true
+break
+case 'condition':
+if(ctx.token=='elif'){is_else=true;is_cond=true}
+if(ctx.token=='if')is_cond=true}}
+if(ctx_js){
+var new_node=new $B.genNode(ctx_js)
+if(ctype=='yield'){
+var yield_node_id=top_node.yields.length
+while(ctx_js.charAt(ctx_js.length-1)==';'){ctx_js=ctx_js.substr(0,ctx_js.length-1)}
+var res='return ['+ctx_js+', '+yield_node_id+']'
+new_node.data=res
+top_node.yields.push(new_node)}else if(node.is_set_yield_value){
+var js='$sent'+ctx_js+'=$B.modules["'
+js +=top_node.iter_id+'"].sent_value || None;'
+js +='if($sent'+ctx_js+'.__class__===$B.$GeneratorSendError)'
+js +='{throw $sent'+ctx_js+'.err};'
+js +='$yield_value'+ctx_js+'=$sent'+ctx_js+';'
+js +='$B.modules["'+top_node.iter_id+'"].sent_value=None'
+new_node.data=js}else if(ctype=='break'){
+new_node.is_break=true
+new_node.loop_num=node.C.tree[0].loop_ctx.loop_num}
+new_node.is_yield=(ctype=='yield'||ctype=='return')
+new_node.is_cond=is_cond
+new_node.is_except=is_except
+new_node.is_if=ctype=='condition' && ctx.token=="if"
+new_node.is_try=node.is_try
+new_node.is_else=is_else
+new_node.loop_start=node.loop_start
+new_node.is_set_yield_value=node.is_set_yield_value
+for(var i=0,_len_i=node.children.length;i < _len_i;i++){new_node.addChild($B.make_node(top_node,node.children[i]))}}
+return new_node}
+$B.genNode=function(data,parent){_indent=4
+this.data=data
+this.parent=parent
+this.children=[]
+this.has_child=false
+if(parent===undefined){this.nodes={}
+this.num=0}
+this.addChild=function(child){if(child===undefined){console.log('child of '+this+' undefined')}
+this.children[this.children.length]=child
+this.has_child=true
+child.parent=this
+child.rank=this.children.length-1}
+this.clone=function(){var res=new $B.genNode(this.data)
+res.has_child=this.has_child
+res.is_cond=this.is_cond
+res.is_except=this.is_except
+res.is_if=this.is_if
+res.is_try=this.is_try
+res.is_else=this.is_else
+res.loop_num=this.loop_num
+res.loop_start=this.loop_start
+res.is_yield=this.is_yield
+return res}
+this.clone_tree=function(exit_node,head){
+var res=new $B.genNode(this.data)
+if(this.replaced && !in_loop(this)){
+res.data='void(0)'}
+if(this===exit_node &&(this.parent.is_cond ||!in_loop(this))){
+if(!exit_node.replaced){
+res=new $B.genNode('void(0)')}else{res=new $B.genNode(exit_node.data)}
+exit_node.replaced=true}
+if(head && this.is_break){res.data='$locals["$no_break'+this.loop_num+'"]=false;'
+res.data +='var err = new Error("break");'
+res.data +='err.__class__=$B.GeneratorBreak;throw err;'
+res.is_break=true}
+res.has_child=this.has_child
+res.is_cond=this.is_cond
+res.is_except=this.is_except
+res.is_try=this.is_try
+res.is_else=this.is_else
+res.loop_num=this.loop_num
+res.loop_start=this.loop_start
+res.no_break=true
+res.is_yield=this.is_yield
+for(var i=0,_len_i=this.children.length;i < _len_i;i++){res.addChild(this.children[i].clone_tree(exit_node,head))
+if(this.children[i].is_break){res.no_break=false}}
+return res}
+this.has_break=function(){if(this.is_break){return true}
+else{for(var i=0,_len_i=this.children.length;i < _len_i;i++){if(this.children[i].has_break()){return true}}}
+return false}
+this.indent_src=function(indent){return ' '.repeat(indent*indent)}
+this.src=function(indent){
+indent=indent ||0
+var res=[this.indent_src(indent)+this.data],pos=1
+if(this.has_child)res[pos++]='{'
+res[pos++]='\n'
+for(var i=0,_len_i=this.children.length;i < _len_i;i++){res[pos++]=this.children[i].src(indent+1)
+if(this.children[i].is_yield){break}}
+if(this.has_child)res[pos++]='\n'+this.indent_src(indent)+'}\n'
+return res.join('')}
+this.toString=function(){return '<Node '+this.data+'>'}}
+$B.GeneratorBreak={}
+$B.$GeneratorSendError={}
+var $GeneratorReturn={}
+$B.generator_return=function(){return{__class__:$GeneratorReturn}}
+function in_loop(node){
+while(node){if(node.loop_start!==undefined)return node
+node=node.parent}
+return false}
+function in_try(node){
+var tries=[],pnode=node.parent,pos=0
+while(pnode){if(pnode.is_try){tries[pos++]=pnode}
+pnode=pnode.parent}
+return tries}
+var $BRGeneratorDict={__class__:$B.$type,__name__:'generator'}
+$BRGeneratorDict.__iter__=function(self){return self}
+$BRGeneratorDict.__enter__=function(self){console.log("generator.__enter__ called")}
+$BRGeneratorDict.__exit__=function(self){console.log("generator.__exit__ called")}
+function clear_ns(iter_id){delete $B.vars[iter_id]
+delete $B.modules[iter_id]
+delete $B.bound[iter_id]
+delete $B.generators[iter_id]
+delete $B.$generators[iter_id]}
+$BRGeneratorDict.__next__=function(self){
+var scope_id=self.func_root.scope.id
+if(self._next===undefined){
+var src=self.func_root.src()+'\n)()'
+try{eval(src)}
+catch(err){console.log("cant eval\n"+src+'\n'+err)
+clear_ns(self.iter_id)
+throw err}
+self._next=$B.$generators[self.iter_id]}
+if(self.gi_running){throw _b_.ValueError("ValueError: generator already executing")}
+self.gi_running=true
+for(var i=0;i<self.env.length;i++){eval('var $locals_'+self.env[i][0]+'=self.env[i][1]')}
+try{var res=self._next.apply(null,self.args)}catch(err){
+self._next=function(){var $locals=$B.vars[self.iter_id]
+$B.enter_frame([self.iter_id,$locals,self.env[0],{}])
+throw StopIteration('after exception')}
+clear_ns(self.iter_id)
+throw err}finally{self.gi_running=false
+$B.leave_frame(self.iter_id)}
+if(res===undefined){self._next=function(){var $locals=$B.vars[self.iter_id]
+$B.enter_frame([self.iter_id,$locals,self.env[0],{}])
+throw StopIteration('iterator is exhausted')}
+throw StopIteration("")}
+if(res[0].__class__==$GeneratorReturn){
+self._next=function(){throw StopIteration("after generator return")}
+clear_ns(self.iter_id)
+throw StopIteration('')}
+var yielded_value=res[0],yield_node_id=res[1]
+if(yield_node_id==self.yield_node_id){return yielded_value}
+self.yield_node_id=yield_node_id
+var exit_node=self.func_root.yields[yield_node_id]
+exit_node.replaced=false
+var root=new $B.genNode(self.def_ctx.to_js('__BRYTHON__.generators["'+self.iter_id+'"]'))
+root.addChild(self.func_root.children[0].clone())
+var fnode=self.func_root.children[1].clone()
+root.addChild(fnode)
+func_node=self.func_root.children[1]
+var js='var $locals = $B.vars["'+self.iter_id+
+'"], $local_name="'+self.iter_id+'";'
+fnode.addChild(new $B.genNode(js))
+var env=$B.last(self.env)
+fnode.addChild(new $B.genNode('$B.enter_frame(["'+self.iter_id+
+'",$locals,"'+env[0]+'",$locals_'+env[0]+']);'))
+while(1){
+var exit_parent=exit_node.parent
+var rest=[],pos=0
+var has_break=false
+var start=exit_node.rank+1
+if(exit_node.loop_start!==undefined){
+start=exit_node.rank}else if(exit_node.is_cond){
+while(start<exit_parent.children.length &&
+(exit_parent.children[start].is_except ||
+exit_parent.children[start].is_else)){start++}}else if(exit_node.is_try ||exit_node.is_except){
+while(start<exit_parent.children.length &&
+(exit_parent.children[start].is_except ||
+exit_parent.children[start].is_else)){start++}}
+for(var i=start,_len_i=exit_parent.children.length;i < _len_i;i++){var clone=exit_parent.children[i].clone_tree(null,true)
+rest[pos++]=clone
+if(clone.has_break()){has_break=true}}
+if(has_break){
+var rest_try=new $B.genNode('try')
+for(var i=0,_len_i=rest.length;i < _len_i;i++){rest_try.addChild(rest[i])}
+var catch_test='catch(err)'
+catch_test +='{if(err.__class__!==$B.GeneratorBreak)'
+catch_test +='{throw err}}'
+catch_test=new $B.genNode(catch_test)
+rest=[rest_try,catch_test]}
+var tries=in_try(exit_node)
+if(tries.length==0){
+for(var i=0;i<rest.length;i++){fnode.addChild(rest[i])}}else{
+var tree=[],pos=0
+for(var i=0;i<tries.length;i++){var try_node=tries[i],try_clone=try_node.clone()
+if(i==0){for(var j=0;j<rest.length;j++){try_clone.addChild(rest[j])}}
+var children=[try_clone],cpos=1
+for(var j=try_node.rank+1;j<try_node.parent.children.length;j++){if(try_node.parent.children[j].is_except){children[cpos++]=try_node.parent.children[j].clone_tree(null,true)}else{break}}
+tree[pos++]=children}
+var parent=fnode
+while(tree.length){children=tree.pop()
+for(var i=0;i<children.length;i++){parent.addChild(children[i])}
+parent=children[0]}}
+exit_node=exit_parent
+if(exit_node===self.func_root){break}}
+self.next_root=root
+var next_src=root.src()+'\n)()'
+try{eval(next_src)}
+catch(err){console.log('error '+err+'\n'+next_src);throw err}
+self._next=$B.generators[self.iter_id]
+return yielded_value}
+$BRGeneratorDict.__mro__=[$BRGeneratorDict,_b_.object.$dict]
+$BRGeneratorDict.$factory={__class__:$B.$factory,$dict: $BRGeneratorDict}
+$BRGeneratorDict.__repr__=$BRGeneratorDict.__str__=function(self){return '<generator '+self.func_name+' '+self.iter_id+'>'}
+$BRGeneratorDict.close=function(self,value){self.sent_value=_b_.GeneratorExit()
+try{var res=$BRGeneratorDict.__next__(self)
+if(res!==_b_.None){throw _b_.RuntimeError("closed generator returned a value")}}catch(err){if($B.is_exc(err,[_b_.StopIteration,_b_.GeneratorExit])){return _b_.None}
+throw err}}
+$BRGeneratorDict.send=function(self,value){self.sent_value=value
+return $BRGeneratorDict.__next__(self)}
+$BRGeneratorDict.$$throw=function(self,value){if(_b_.isinstance(value,_b_.type))value=value()
+self.sent_value={__class__:$B.$GeneratorSendError,err:value}
+return $BRGeneratorDict.__next__(self)}
+$B.$BRgenerator=function(env,func_name,func,def_id){
+if(func.$def_node){var def_node=func.$def_node
+delete $B.modules[def_id]}else{var def_node=func.$def_node=$B.modules[def_id]}
+if(def_node===undefined){console.log('def node undef',def_id)}
+var def_ctx=def_node.C.tree[0]
+var counter=0 
+$B.generators=$B.generators ||{}
+$B.$generators=$B.$generators ||{}
+var module=def_node.module 
+var res=function(){var args=[],pos=0
+for(var i=0,_len_i=arguments.length;i<_len_i;i++){args[pos++]=arguments[i]}
+var iter_id=def_id+'_'+counter++
+$B.bound[iter_id]={}
+for(var attr in $B.bound[def_id]){$B.bound[iter_id][attr]=true}
+var func_root=new $B.genNode(def_ctx.to_js('$B.$generators["'+iter_id+'"]'))
+func_root.scope=env[0][1]
+func_root.module=module
+func_root.yields=[]
+func_root.loop_ends={}
+func_root.def_id=def_id
+func_root.iter_id=iter_id
+for(var i=0,_len_i=def_node.children.length;i < _len_i;i++){func_root.addChild($B.make_node(func_root,def_node.children[i]))}
+var func_node=func_root.children[1].children[0]
+var obj={__class__ : $BRGeneratorDict,args:args,def_id:def_id,def_ctx:def_ctx,def_node:def_node,env:env,func:func,func_name:func_name,func_root:func_root,module:module,func_node:func_node,next_root:func_root,gi_running:false,iter_id:iter_id,id:iter_id,num:0}
+$B.modules[iter_id]=obj
+obj.parent_block=def_node.parent_block
+return obj}
+res.__call__=function(){console.log('call generator');return res.apply(null,arguments)}
+res.__repr__=function(){return "<function "+func.__name__+">"}
+return res}
+$B.$BRgenerator.__repr__=function(){return "<class 'generator'>"}
+$B.$BRgenerator.__str__=function(){return "<class 'generator'>"}
+$B.$BRgenerator.__class__=$B.$type})(__BRYTHON__)
+;(function($B){var modules={}
+modules['browser']={$package: true,$is_package: true,__package__:'browser',__file__:$B.brython_path.replace(/\/*$/g,'')+
+'/Lib/browser/__init__.py',alert:function(message){window.alert($B.builtins.str(message))},confirm: $B.JSObject(window.confirm),console:$B.JSObject(window.console),document:$B.DOMNode(document),doc: $B.DOMNode(document),
+DOMEvent:$B.DOMEvent,DOMNode:$B.DOMNode,mouseCoords: function(ev){return $B.JSObject($mouseCoords(ev))},prompt: function(message,default_value){return $B.JSObject(window.prompt(message,default_value||''))},reload: function(){
+var scripts=document.getElementsByTagName('script'),js_scripts=[]
+for(var i=0;i<scripts.length;i++){if(scripts[i].type===undefined ||
+scripts[i].type=='text/javascript'){js_scripts.push(scripts[i])
+if(scripts[i].src){var new_script=document.createElement('SCRIPT')
+console.log(scripts[i].src)}}}
+console.log(js_scripts)
+for(var i=0;i<$B.scripts.length;i++){var name=$B.scripts[i]
+console.log('script:',name)}
+for(var mod in $B.imported){if($B.imported[mod].$last_modified){console.log('check',mod,$B.imported[mod].__file__,$B.imported[mod].$last_modified)}else{console.log('no date for mod',mod)}}},select: function(css_selector){var elts=document.querySelectorAll(css_selector),DOMNode=$B.DOMNodeDict.$factory,res=[]
+for(var i=0;i<elts.length;i++){res.push(DOMNode(elts[i]))}
+return res},win: $B.win,window: $B.win,URLParameter:function(name){name=name.replace(/[\[]/,"\\[").replace(/[\]]/,"\\]");
+var regex=new RegExp("[\\?&]" + name + "=([^&#]*)"),results=regex.exec(location.search);
+results=results===null ? "" : decodeURIComponent(results[1].replace(/\+/g," "));
+return $B.builtins.str(results);}}
+modules['browser'].__path__=modules['browser'].__file__
+modules['browser.html']=(function($B){var _b_=$B.builtins
+var $TagSumDict=$B.$TagSum.$dict
+function makeTagDict(tagName){
+var dict={__class__:$B.$type,__name__:tagName}
+dict.__init__=function(){var $ns=$B.args('pow',1,{self:null},['self'],arguments,{},'args','kw')
+var self=$ns['self']
+var args=$ns['args']
+if(args.length==1){var first=args[0]
+if(_b_.isinstance(first,[_b_.str,_b_.int,_b_.float])){
+self.elt.innerHTML=_b_.str(first)}else if(first.__class__===$TagSumDict){for(var i=0,_len_i=first.children.length;i < _len_i;i++){self.elt.appendChild(first.children[i].elt)}}else{
+if(_b_.isinstance(first,$B.DOMNode)){self.elt.appendChild(first.elt)}else{try{
+var items=_b_.list(first)
+for(var i=0;i<items.length;i++){$B.DOMNode.$dict.__le__(self,items[i])}}catch(err){throw _b_.ValueError('wrong element '+first)}}}}
+var items=_b_.list(_b_.dict.$dict.items($ns['kw']))
+for(var i=0,_len_i=items.length;i < _len_i;i++){
+var arg=items[i][0]
+var value=items[i][1]
+if(arg.toLowerCase().substr(0,2)==="on"){
+var js='$B.DOMNodeDict.bind(self,"'
+js +=arg.toLowerCase().substr(2)
+eval(js+'",function(){'+value+'})')}else if(arg.toLowerCase()=="style"){$B.DOMNodeDict.set_style(self,value)}else{
+if(value!==false){
+try{arg=arg.toLowerCase().replace('_','-')
+self.elt.setAttribute(arg,value)}catch(err){throw _b_.ValueError("can't set attribute "+arg)}}}}}
+dict.__mro__=[dict,$B.DOMNodeDict,$B.builtins.object.$dict]
+dict.__new__=function(cls){
+var res=$B.DOMNode(document.createElement(tagName))
+res.__class__=cls.$dict
+return res}
+return dict}
+function makeFactory(tagName){var factory=function(){if(tagName=='SVG'){var res=$B.DOMNode(document.createElementNS("http://www.w3.org/2000/svg","svg"))}else{var res=$B.DOMNode(document.createElement(tagName))}
+res.__class__=dicts[tagName]
+var args=[res].concat(Array.prototype.slice.call(arguments))
+dicts[tagName].__init__.apply(null,args)
+return res}
+factory.__class__=$B.$factory
+factory.$dict=dicts[tagName]
+return factory}
+var $tags=['A','ABBR','ACRONYM','ADDRESS','APPLET','AREA','B','BASE','BASEFONT','BDO','BIG','BLOCKQUOTE','BODY','BR','BUTTON','CAPTION','CENTER','CITE','CODE','COL','COLGROUP','DD','DEL','DFN','DIR','DIV','DL','DT','EM','FIELDSET','FONT','FORM','FRAME','FRAMESET','H1','H2','H3','H4','H5','H6','HEAD','HR','HTML','I','IFRAME','IMG','INPUT','INS','ISINDEX','KBD','LABEL','LEGEND','LI','LINK','MAP','MENU','META','NOFRAMES','NOSCRIPT','OBJECT','OL','OPTGROUP','OPTION','P','PARAM','PRE','Q','S','SAMP','SCRIPT','SELECT','SMALL','SPAN','STRIKE','STRONG','STYLE','SUB','SUP','SVG','TABLE','TBODY','TD','TEXTAREA','TFOOT','TH','THEAD','TITLE','TR','TT','U','UL','VAR',
+'ARTICLE','ASIDE','AUDIO','BDI','CANVAS','COMMAND','DATA','DATALIST','EMBED','FIGCAPTION','FIGURE','FOOTER','HEADER','KEYGEN','MAIN','MARK','MATH','METER','NAV','OUTPUT','PROGRESS','RB','RP','RT','RTC','RUBY','SECTION','SOURCE','TEMPLATE','TIME','TRACK','VIDEO','WBR',
+'DETAILS','DIALOG','MENUITEM','PICTURE','SUMMARY']
+var obj=new Object()
+var dicts={}
+for(var i=0,_len_i=$tags.length;i < _len_i;i++){var tag=$tags[i]
+dicts[tag]=makeTagDict(tag)
+obj[tag]=makeFactory(tag)
+dicts[tag].$factory=obj[tag]}
+$B.tag_classes=dicts
+return obj})(__BRYTHON__)
+modules['javascript']={__file__:$B.brython_path+'/libs/javascript.js',JSObject: $B.JSObject,JSConstructor: $B.JSConstructor,console: $B.JSObject(window.console),load:function(script_url,names){
+var file_obj=$B.builtins.open(script_url)
+var content=$B.builtins.getattr(file_obj,'read')()
+eval(content)
+if(names!==undefined){if(!Array.isArray(names)){throw $B.builtins.TypeError("argument 'names' should be a list, not '"+$B.get_class(names).__name__)}else{for(var i=0;i<names.length;i++){try{window[names[i]]=eval(names[i])}
+catch(err){throw $B.builtins.NameError("name '"+names[i]+"' not found in script "+script_url)}}}}},py2js: function(src,module_name){if(is_none(module_name)){module_name='__main__'+$B.UUID()}
+return $B.py2js(src,module_name,module_name,'__builtins__').to_js()},pyobj2jsobj:function(obj){return $B.pyobj2jsobj(obj)},jsobj2pyobj:function(obj){return $B.jsobj2pyobj(obj)}}
+var _b_=$B.builtins
+modules['_sys']={__file__:$B.brython_path+'/libs/_sys.js',
+Getframe : function(depth){return $B._frame($B.frames_stack,depth)},argv:
+{'__get__':function(){var locals_id=$B.last($B.frames_stack)[0]
+res=[locals_id]
+if($B.$options.args!==undefined){var options=$B.$options.args[locals_id]
+if(options !==undefined){if(Array.isArray(options)){for(var i=0,len=options.length;i<len;i++){if(typeof options[i]=='string' ||
+typeof options[i]=='number'){res.push(options[i])}else{throw _b_.ValueError("can only pass strings or numbers in options.args")}}}}}
+return res},'__set__':function(){throw _b_.TypeError("Read only property 'sys.argv'")}},modules :
+{'__get__':function(){return _b_.dict($B.JSObject($B.imported))},'__set__':function(self,obj,value){throw _b_.TypeError("Read only property 'sys.modules'")}},path: 
+{'__get__':function(){return $B.path},'__set__':function(self,obj,value){$B.path=value }},meta_path: 
+{'__get__':function(){return $B.meta_path},'__set__':function(self,obj,value){$B.meta_path=value }},path_hooks: 
+{'__get__':function(){return $B.path_hooks},'__set__':function(self,obj,value){$B.path_hooks=value }},path_importer_cache: 
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+$B.bound.__builtins__.__builtins__=$B.builtins.__builtins__})(__BRYTHON__)
+;(function($B){var _b_=$B.builtins,
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+function import_hooks(mod_name,_path,module,blocking){
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+var _loader=_b_.getattr(spec,'loader',_b_.None),_sys_modules=$B.imported,_spec_name=_b_.getattr(spec,'name');
+if(is_none(module)){
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+if(_b_.getattr(spec,'has_location')){module.__file__=_b_.getattr(spec,'origin')
+$B.$py_module_path[module.__name__]=module.__file__;}
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+else{
+throw _b_.ImportError(mod_name);}}
+else{
+var exec_module=_b_.getattr(_loader,'exec_module',_b_.None);
+if(is_none(exec_module)){
+module=_b_.getattr(_b_.getattr(_loader,'load_module'),'__call__')(_spec_name);}
+else{
+$B.modules[_spec_name]=_sys_modules[_spec_name]=module;
+try{_b_.getattr(exec_module,'__call__')(module,blocking)}
+catch(e){delete $B.modules[_spec_name];
+delete _sys_modules[_spec_name];
+throw e;}}}
+return _sys_modules[_spec_name];}
+$B.import_hooks=import_hooks})(__BRYTHON__)
+;(function($B){_b_=$B.builtins
+$B.execution_object={}
+$B.execution_object.queue=[]
+$B.execution_object.start_flag=true
+$B.execution_object.$execute_next_segment=function(){if($B.execution_object.queue.length==0){return}
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+setTimeout(function(){
+console.log(code)
+try{eval(code)}catch(e){console.log(e)}
+$B.execution_object.start_flag=$B.execution_object.queue.length==0;},delay);}
+$B.execution_object.$append=function(code,delay){$B.execution_object.queue.push([code,delay]);
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+$B.execution_object.source_conversion=function(js){js=js.replace("\n","",'g')
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+js+="';$B.execution_object.$append($jscode, 10); "
+js+="$B.execution_object.$execute_next_segment(); "
+return "var $jscode='" + js}
+_b_['brython_block']=function(f,sec){if(sec===undefined ||sec==_b_.None)sec=1
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+$B.builtin_funcs['brython_block']=true
+$B.bound['__builtins__']['brython_block']=true
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+$B.bound['__builtins__']['brython_async']=true})(__BRYTHON__)