using System;

using System.Collections;

using System.Dynamic;

​

public class Program

{

    public static void Main()

    {

        // Decode

        byte[] myBase64ret = Convert.FromBase64String("Hola");

        string myStr = System.Text.Encoding.UTF8.GetString(myBase64ret);

        Console.WriteLine(myStr);

        // Encoded

        byte[] myByte = System.Text.Encoding.UTF8.GetBytes("Hola");

        string myBase64 = Convert.ToBase64String(myByte);

        Console.WriteLine(myBase64);

    }

    public enum x{

        adsad,

        adasd

    }

}