#include <iostream>

int main()
{
	int L; std::cin >> L;//100
	int M; std::cin >> M;//25
	int N; std::cin >> N;//1

	int ans = 0;
	int sum = 100*L + 25*M + N;
	sum -= 1000*(sum/1000);

	ans += sum/100;
	sum -= 100*(sum/100);

	ans += sum/25;
	sum -= 25*(sum/25);

	ans += sum;
	std::cout << ans << std::endl;

	return 0;
}