تمرین اعداد,حلقه بی پایان while - به همراه if_else_else if _try_catch

// تمرین 2
Console.WriteLine(DateTime.Now);

while (true)
{

    try
    {
        Console.WriteLine("welcome");
        Console.WriteLine("please enter number");
        int num2 = Convert.ToInt32(Console.ReadLine());

        if (num2 % 2 == 0 && num2 !=50)
        {

            Console.ForegroundColor = ConsoleColor.Green;
            Console.WriteLine("number zoj mibashad");
            Console.ResetColor();
        }
        else if (num2 == 50)
        {
            Console.ForegroundColor = ConsoleColor.Magenta;
            Console.WriteLine("ha ha ha");
            Console.ResetColor();
            continue;
        }
        else
        {
            Console.ForegroundColor = ConsoleColor.Yellow;
            Console.WriteLine("farde");
            Console.ResetColor();

        }

    }
    catch
    {
        Console.ForegroundColor = ConsoleColor.Red;
        Console.WriteLine("just number");
        Console.ResetColor();
    }
    finally
    {
        Console.WriteLine("thanks");
    }

}