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

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

    M += N/25;
    N = N%25;
    L += M/4;
    M = M%4;
    L = L%10;

    cout << (L+N+M) << endl;

}