using System;

public class Hello{
    public static void Main(){
        int a = int.Parse(Console.ReadLine().Trim());
        int b = int.Parse(Console.ReadLine().Trim());
        int c = int.Parse(Console.ReadLine().Trim());
        int total = 0;
        
        b = b + (c / 25);
        total = total + (c % 25);
        
        a = a + (b / 4);
        total = total + (b % 4);
        
        total = total + (a % 10);
        
        Console.WriteLine(total);

    }
}