#include <iostream>
using namespace std;

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