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treestr = "[[A:10, B:8, C:7]D:11, E:12, F:13]"
MyTree = {}
def createTree(substring,node):
l = len(substring)
if l == 0:
return
if substring[0] == '[':
c = 1
i = 1
while c != 0 and i < l:
if substring[i] == '[':
c += 1
elif substring[i] == ']':
c -= 1
else :
pass
i += 1
j = i
while j < l:
if substring[j] == ',':
break
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