#define _USE_MATH_DEFINES
#include<stdio.h>
#include<string>
#include<iostream>
#include<cctype>
#include<cstdio>
#include<vector>
#include<stack>
#include <algorithm>
#include<math.h>
#include<set>
#include<map>
#include<iomanip>
using namespace std;



int main(){
	
	int a,b,c;
	long long int t=0;
	cin>>a>>b>>c;
	t+=a+25*b+100*c;
	t%=1000;
	int ans=t/100;
	t%=100;
	ans+=t/25;
	t%=25;
	ans+=t;

	cout<<ans<<endl;
	
	return 0;
}