#include <bits/stdc++.h>

using namespace std;

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int l, m, n;
    
    cin >> l >> m >> n;

    int t1 = n % 25;
    int c25 = n / 25;

    int t25 = (m+c25) % 4;
    int c100 = (m + c25) / 4;

    int t100 = (l+c100) % 10;

    cout << t1+t25+t100 << "\n";

    return 0;
}