using System;

public class Program

{

    public static void Main()

    {

        Console.Write("Enter the same key 3 times in a row: ");

        string key = Console.ReadLine();

        if (key.Length < 3)

        {

            Console.WriteLine("The key is too short");

        }

        else if (key.Length > 3)

        {

            Console.WriteLine("The key is too long");

        }

        else

        {

            if (key[0] == key[1] && key[1] == key[2])

            {

                Console.WriteLine("Welcome!");

            }

            else

            {

                Console.WriteLine("The key is not the same");

            }

        }

    }

}