using System;

using System.Text;

public class Program

{

    public static void Main()

    {

        string input = "gm>ei?1j]1P(";

        byte xorConstant = 0x53;

        byte[] data = Encoding.UTF8.GetBytes(input);

        for (int i = 0; i < data.Length; i++)

        {

            data[i] = (byte)(data[i] ^ xorConstant);

        }

        string output = Convert.ToBase64String(data);

        Console.WriteLine(output);

    }

}