class Program
    {
        static void Main(string[] args)
        {
            int[] priceCoin = { 100, 25, 1 };
            int sum = int.Parse(Console.ReadLine()) * 100;
            //int l = int.Parse(Console.ReadLine());
            sum += int.Parse(Console.ReadLine()) * 25;
            sum += int.Parse(Console.ReadLine());
            while(sum >= 1000)
            {
                sum -= 1000;
            }
            int count = 0;
            for (int i = 0; i < 3; i++)
            {
                var result = CoinCount(sum, priceCoin[i]);
                sum = result.Item1;
                count += result.Item2;
            }
            Console.WriteLine(count);
        }

        private static (int,int) CoinCount(int sum,int coin)
        {
            int count = 0;
            while (sum >= coin)
            {
                sum -= coin;
                count++;
            }
            return (sum ,count);
        }
    }