339A - Helpful Maths
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def help_math(s):
nums = []
for i in range(0,len(s),2):
nums.append(int(s[i]))
nums.sort()
result =""
for i in nums:
result += str(i) +"+"
return result[:-1]
if __name__ == '__main__':
s=input()
print(help_math(s))
Python
INFO