using System;

using System.Text;

public class Program

{

    public static void Main()

    {

        while(true)

        {

        Console.WriteLine("Tell me dat message boi");

        string astronaughtintheocean = Convert.ToBase64String(Encoding.ASCII.GetBytes(Console.ReadLine()));

        Console.WriteLine(astronaughtintheocean);

        Console.WriteLine("\n\n Do you want to decode a base64 message?");

        if(Console.ReadLine() == "yes")

        {

            Console.WriteLine("tell me dat base64 message");

            Console.WriteLine(Encoding.UTF8.GetString(Convert.FromBase64String(Console.ReadLine())));

        }

        else

        {

            Console.WriteLine(":(((((((((");

        }

        }

    }

}