#include <bits/stdc++.h>

using namespace std;

int main() {
    int L, M, N;
    cin >> L >> M >> N;

    int sum = 100 * L + 25 * M + N;
    sum %= 1000;
    int LL = sum / 100;
    sum %= 100;
    int MM = sum / 25;
    sum %= 25;
    int NN = sum;
    
    cout << LL + MM + NN << endl;
    return 0;
}