using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(IsEncrypt("Test Subject"));

        Console.WriteLine(Encrypt("Test Subject"));

        Console.WriteLine(IsEncrypt("Test \\encrypt//"));

        Console.WriteLine(Encrypt("Test \\encrypt//"));

    }

    public static bool IsEncrypt(string subject)

    {

        return (subject.Contains("\\\\encrypt//"));

    }

    public static string Encrypt(string subject)

    {

        if (!IsEncrypt(subject))

        {

            subject += " \\\\encrypt//";

        }

        return subject;

    }

}