#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cstdio>
#include <cstring>
#include <cmath>
using namespace std;

int main() {
    int l, m, n;
    cin >> l >> m >> n;

    int c = l * 100 + m * 25 + n;

    int r = 0;
    c %= 1000;
    r += c / 100; c %= 100;
    r += c / 25; c %= 25;
    r += c;

    cout << r << endl;

    return 0;
}