Submission #15126969

Source Code Expand

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import re
S = input()
def tri(x):
    return x * (x + 1) // 2
ret = 0
print(sum(tri(len(s) // 2) for s in re.findall("(?:25)+", S)))
 
 
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import re
S = input()


def tri(x):
    return x * (x + 1) // 2


ret = 0
print(sum(tri(len(s) // 2) for s in re.findall("(?:25)+", S)))

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