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

namespace yukicoder
{
    class Program
    {
        static void Main(string[] args)
        {
            int a = int.Parse(Console.ReadLine()) * 100;
            int b = int.Parse(Console.ReadLine()) * 25;
            int c = int.Parse(Console.ReadLine());

            int sum = a + b + c;
            sum = (sum / 1000) * 1000;
            a = sum / 100;
            sum = sum - (a * 100);
            b = sum / 25;
            sum = sum - (b * 25);
            c = sum;

            Console.WriteLine("{0}", a + b + c);
        
        }

    }
}