using System;

using System.Linq;

​

public class Program

{         

​

    public static void Main()

    {

        const string input = @"TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlzIHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2YgdGhlIG1pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGludWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRoZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=";

        var bytes = Convert.FromBase64String(input);

        var result = BitConverter.ToUInt32(bytes, 0);

        var result2 = BitConverter.ToUInt32(bytes, 0) & UInt32.MaxValue;

        var result3 = BitConverter.ToUInt32(bytes.Reverse().Take(32).Reverse().ToArray(), 0);

        Console.WriteLine(result == result2 && result == result3);

    }                                       

}

​