using System;

class Program
{
    static void Main(string[] args)
    {
        var coin1 = Convert.ToInt32(Console.ReadLine());
        var coin25 = Convert.ToInt32(Console.ReadLine());
        var coin100 = Convert.ToInt32(Console.ReadLine());

        var remainCoin1 = coin1 % 25;
        coin25 += coin1 / 25;
        var remainCoin25 = coin25 % 4;
        coin100 += coin25 / 4;
        var remainCoin100 = coin100 % 10;

        Console.WriteLine(remainCoin1 + remainCoin25 + remainCoin100);
    }
}