#include <iostream>
using namespace std;
int main(){
int a;
cin >> a;
int b;
cin >> b;
int c;
cin >> c;
int d,e,f,g,h;
d = c+(25*b)+(100*a);
e = d/1000;
f = d-1000*e;
g = f/100;
h = f-100*g;
cout << g+h << endl;
return 0;
}