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

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

	int ans = 0;
	int sum = L * 100 + M * 25 + N;
	sum %= 1000;
	ans += sum / 100;
	sum %= 100;
	ans += sum / 25;
	sum %= 25;
	ans += sum;

	cout << ans << endl;
}