How to compress and decompress a string in C#?

 string input = "This is a test string to compress.";
byte[] inputBytes = Encoding.UTF8.GetBytes(input);

using (var outputStream = new MemoryStream())
{
    using (var gZipStream = new GZipStream(outputStream, CompressionMode.Compress))
    {
        gZipStream.Write(inputBytes, 0, inputBytes.Length);
    }

    byte[] compressedBytes = outputStream.ToArray();
    string compressedString = Convert.ToBase64String(compressedBytes);

    Console.WriteLine("Compressed string: " + compressedString);

    using (var inputStream = new MemoryStream(compressedBytes))
    {
        using (var gZipStream = new GZipStream(inputStream, CompressionMode.Decompress))
        {
            using (var outputStream2 = new MemoryStream())
            {
                gZipStream.CopyTo(outputStream2);
                byte[] decompressedBytes = outputStream2.ToArray();
                string decompressedString = Encoding.UTF8.GetString(decompressedBytes);

                Console.WriteLine("Decompressed string: " + decompressedString);
            }
        }
    }
}