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Boring solution in Clear category for Brackets by Vulwsztyn
def checkio(r):
x=''
for i in range(len(r)):
if r[i]=='(' or r[i]==')' or r[i]=='[' or r[i]==']' or r[i]=='{' or r[i]=='}':
x+=r[i]
s=0
while (x!=''):
y=''
i=0
while (i
Oct. 31, 2016