#!/usr/bin/env python3
# -*- coding: utf-8-*-
if __name__ == '__main__':
    l = int(input())
    m = int(input())
    n = int(input())
    s = 100 * l + 25 * m + n
    s %= 1000
    a = s // 100
    s %= 100
    a += (s // 25)
    s %= 25
    a += s
    print(a)