#include<iostream>
#include<string>
#include <chrono>
using namespace std;
int main()
{
	int h, q, o; cin >> h >> q >> o;
	
	h += o / 100;
	o %= 100;
	q += o / 25;
	o %= 25;
	h += q / 4;
	q %= 4;
	h %= 10;

	cout << h+q+o << endl;
	return 0;
}