using System;
using System.Linq;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            var l = int.Parse(Console.ReadLine());
            var m = int.Parse(Console.ReadLine());
            var n = int.Parse(Console.ReadLine());

            int sum = l * 100 + m * 25 + n;

            var kouka1 = sum % 25;
            var kouka25 = sum / 25;
            var kouka100 = kouka25 / 4;
            var kouka1000 = kouka100 / 10;

            int result = kouka100 % 10 + kouka25 % 4 + kouka1;
            Console.WriteLine($"{result}");
        }
    }
}