#include <iostream>
#include <vector>
#include <algorithm>
#include <map>
#include <queue>
using namespace std;
typedef long long int ll;

int main(){
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	int a,b,c; cin >> a >> b >> c;
	int sum=a*100+25*b+c;
	sum%=1000;
	cout << sum/100+sum%100/25+sum%25 << endl;
}