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

int main()
{
int L;
int M;
int N;
int iSum;

	cin >> L;
	cin >> M;
	cin >> N;

	iSum = 100 * L + 25 * M + N;
	iSum %= 1000;

	L = iSum / 100;
	iSum %= 100;

	M = iSum / 25;
	iSum %= 25;

	N = iSum;

	cout << L + M + N << endl;

	return 0;
}