#include<iostream>
using namespace std;

int main(){

    int l,m,n,k,alpha;

    cin >> l >> m >> n;

    alpha = l;

    l = l - int(alpha/25);
    m = m + int(alpha/25);

    alpha = m;

    m = m - 4*int(alpha/4);
    n = n + int(alpha/4);

    alpha = n;

    n = n - 10*int(alpha/10);
    k = int(alpha/10);

    cout << l+m+n << endl;

    return 0;
}