#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <time.h>
#include <cstdlib>
#include <cmath>
#include <fstream>
#include <iomanip>

int main(void) {

	//test用
	//std::ifstream in("test.txt");
	//std::cin.rdbuf(in.rdbuf());

	int L, M, N;
	std::cin >> L >> M >> N;

	int total = 100 * L + 25 * M + N;
	int coin = (total % 1000) / 100 + (total % 100) / 25 + (total % 25);

	std::cout << coin << std::endl;
}