#include <iostream>
using namespace std;

int main()
{
    int L, M, N;
    cin >> L >> M >> N;
    int sum, tmp;
    sum = L + M + N;
    tmp = N / 25;
    sum -= tmp * 24;
    tmp = (M + tmp) / 4;
    sum -= tmp * 3;
    tmp = (L + tmp) / 10;
    sum -= tmp * 10;
    cout << sum << endl;
    return 0;
}