#include <bits/stdc++.h>
using namespace std;

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

    int total = l * 100 + m * 25 + n;
    int ans = 0;
    total %= 1000;
    ans += total / 100;
    total %= 100;
    ans += total / 25;
    total %= 25;
    ans += total;
    cout << ans;

    return 0;
}