using System;

namespace c_
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            int number = Convert.ToInt32(input);

            int firstEight = number % (16 * 16);
            int secondEight = number / (16 * 16);

            int newNumber = (firstEight * (16 * 16)) + secondEight;

            Console.WriteLine(newNumber);
        }
    }
}