using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

public static class Program

{

    enum HTTPerror{Bad_Request = 400, Unauthorized = 401};

    public static void Main()

    {

​

        Console.WriteLine("Enter the number of error");

         int x = int.Parse(Console.ReadLine());

         Console.WriteLine("{0}", (HTTPerror)x);

    }

}