/*
    No.32 貯金箱の憂鬱
    https://yukicoder.me/problems/no/32
*/
#include <bits/stdc++.h>
using namespace std;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int high, middle, low;
    cin >> high >> middle >> low;

    middle += (low / 25);
    low %= 25;

    high += (middle / 4);
    middle %= 4;

    high %= 10;

    cout << (low + middle + high) << endl;
}