#include<bits/stdc++.h>
using namespace std;
int main(){
  int l,m,n;
  cin>>l>>m>>n;
  int sum=l*100+m*25+n;
  sum=sum%1000;
  l=sum/100;
  sum=sum%100;
  m=sum/25;
  sum=sum%25;
  n=sum;
  cout<<l+m+n<<endl;
  return 0;
}