#include <iostream>
#include <string>
using namespace std;

int main()
{
	int l, m, n, ans;
	cin >> l >> m >> n;
	m = m + n / 25;
	l = l + m / 4;

		ans = n % 25 + m % 4 + l % 10;

	cout << ans << endl;


	

	return 0;
}