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

template<typename T>
void fin(T a){
  cout<<a<<endl;
  exit(0);
}

signed main(){
    int l,m,n;cin>>l>>m>>n;
    int A=l*100+m*25+n;
    int ans=0;
    A%=1000;ans+=A/100;
    A/=100;ans+=A/25;
    A%=25;ans+=A;
    cout<<A<<endl;
}