#include<iostream>

using namespace std;

int main()
{
	int L, M, N;
	cin >> L;
	cin >> M;
	cin >> N;

	M = M + N / 25;
	N = N % 25;
	L = L + M / 4;
	M = M % 4;
	L = L % 10;
	cout << L + M + N << endl;

	return 0;
}