#include<iostream>
using namespace std;

int main(){
    int a,b,c,SUM;
    cin >> a >> b >> c;
    a =  c / 100 + a;
    b = c % 100 / 25 + b;
    a = b / 4 + a;
    b = b % 4;
    SUM = c % 25 + b + a % 100;
    cout << SUM <<endl;
    return 0;
}