using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Programming
{
    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 coin = (L * 100 + M * 25 + 1 * N) % 1000;
            int coin100 = coin / 100;
            coin = coin % 100;

            int coin25 = coin / 25;
            coin = coin % 25;

            Console.WriteLine(coin100 + coin25 + coin);
            Console.ReadLine();
        }
    }
}