#include <iostream>
using namespace std;
int main() 
{
	int  L, N, M;

	cin >> L >> N >> M;
	
	M = M + (N / 25);
	N = N % 25;

	L = L + (M / 4);
	M = M % 4;

	L = L % 10;
	
	cout << L + M + N << endl;
	return 0;
}