using System;

public class Program
{
    public static void Main(string[] args)
    {
        int L = 0, M = 0, N = 0;
        L = int.Parse(Console.ReadLine());
        M = int.Parse(Console.ReadLine());
        N = int.Parse(Console.ReadLine());
        var total = 100 * L + 25 * M + N;
        var coins = (total % 1000) / 100;
        coins += (total % 100) / 25;
        coins += (total % 25);
        Console.WriteLine(coins);
    }
}