using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            int L = int.Parse(Console.ReadLine());
            int M = int.Parse(Console.ReadLine());
            int N = int.Parse(Console.ReadLine());

            int sum = 0;
            int coin = 0;
            sum = 100 * L + 25 * M + N;
            sum = sum % 1000;
            coin = sum / 100;
            coin = coin + (sum % 100) / 25;
            coin = coin + (sum % 25);
            Console.WriteLine(coin);
        }
    }
}