using System;

using System.IO;

using System.IO.Compression;

public class Program

{

    public static void Main()

    {

        string input = Console.ReadLine();

        byte[] gZipBuffer = Convert.FromBase64String(input);

        using (var source = new MemoryStream(gZipBuffer))

        {

            using (var destination = new MemoryStream())

            {

                using (var gZipStream = new GZipStream(source, CompressionMode.Decompress))

                {

                    gZipStream.CopyTo(destination);

                }

​

                Console.WriteLine(System.Text.Encoding.UTF8.GetString(destination.ToArray()));

            }

        }

    }

}