Submission #322893

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Source Code Expand

#!/usr/bin/env python


def read():
    return raw_input()


def work(s):
    ans = 0

    idx = 0
    while idx < len(s):
        nex = idx
        while nex < len(s):
            if s[nex:nex + 2] == "25":
                nex += 2
            else:
                break

        ans += (nex - idx) / 2 * ((nex - idx) / 2 + 1) / 2
        idx = nex + 1

    print ans
        

if __name__ == "__main__":
    work(read())

Submission Info

Judge Result