#include <iostream>
#include <string>

using namespace std;

int main() {
  int l, m, n;
  int a1, a25, a100;
  int sum;
  cin >> l; // 100円硬貨
  cin >> m; // 25円
  cin >> n; // 1円

  a1 = n % 25;
  m = m + (n / 25);
  a25 = m % 4;
  l = l + (m / 4);
  a100 = l % 10;

  cout << a1 + a25 + a100 << endl;
  return 0;
}