#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define all(x) (x).begin(), (x).end()
using ll = long long;

int main() {
    int l, m, n;
    cin >> l >> m >> n;
    int s = 0;
    m += n / 25;
    n = n % 25;
    l += (m * 25) / 100;
    m = m % 4;
    l = l % 10;
    cout << l + m + n << endl;

    return 0;
}