#include <iostream>

using namespace std;

int main()
{
	int L, M, N;
	while(cin >> L >> M >> N) {
		M += N / 25; N %= 25;
		L += M / 4; M %= 4;
		L %= 10;
		int ans = L + M + N;
		cout << ans << endl;
	}
	return 0;
}