#include <iostream>
using namespace std;

int main() {
    int l, m, n, money, ans;
    cin >> l >> m >> n;
    money = (l * 100 + m * 25 + n) % 1000;
    ans = money / 100;
    money %= 100;
    ans += money / 25;
    money %= 25;
    ans += money;
    cout << ans << endl;
    return 0;
}