using System;

using System.Collections.Generic;

using System.IO;

using System.IO.Compression;

using System.Text;

public class Program

{

    public static void Main()

    {

        string b64input = "s0lKrMrMS0+0C8nILFYAokSFktTiEht9mDgA";

        var bytes = Convert.FromBase64String(b64input);

        var utf8 = Encoding.UTF8;

        using (var output = new MemoryStream())

        {

            using (var input = new MemoryStream(bytes))

            {

                using (var unzip = new DeflateStream(input, CompressionMode.Decompress))

                {

                    unzip.CopyTo(output, bytes.Length);

                    unzip.Close();

                }

                Console.WriteLine(utf8.GetString(output.ToArray()));

            }

        }

    }

}