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

int main(){
	int l,m,n;
	cin >> l >> m >> n;
	//	cout << n << " " << m << " " << l << endl;
	m += n / 25;
	//	cout << n << " " << m << " " << l << endl;
	n -= (n / 25) * 25;
	//	cout << n << " " << m << " " << l << endl;
	l += (m * 25) / 100;
	//	cout << n << " " << m << " " << l << endl;
	m %= 4;
	//	cout << n << " " << m << " " << l << endl;
	l %= 10;
	//	cout << n << " " << m << " " << l << endl;
	cout << n + m + l << endl;
	return 0;
}