#include <bits/stdc++.h>
using namespace std;

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

	int s = 0;
	s = 100 * L + 25 * M + 1 * N;
	s %= 1000;

	int n100, n25, n1;
	n100 = s / 100;
	s %= 100;
	n25 = s / 25;
	s %= 25;
	n1 = s;

	cout << n100 + n25 + n1 << endl;
}