#include<iostream>
using namespace std;

int main()
{
    int m100, m25, m1;
    int all;

    cin >> m100 >> m25 >> m1;
    all = 100*m100 + 25*m25 + m1;
    cout << all%1000/100 + all%100/25 + all%25 << endl;

    return 0;
}