def addListToListTable(elementList, key, listTable):
 if (key in listTable):
  listTable[key] += elementList
 else:
  listTable[key] = elementList

def addListToListTable ( elementList , key , listTable ) : if ( key in listTable ) : listTable [ key ] += elementList else : listTable [ key ] = elementList
add a list to the list table .