using System;

public class Program

{

    public void Main()

    {

        Console.WriteLine("Res 1: " + Testen(null, 8, 7).ToString());

        Console.WriteLine("Res 2: " + Testen(7, 8, 7).ToString());

        Console.WriteLine("Res 3: " + Testen(0, 5, 7).ToString());

        Console.WriteLine("Res 4: " + Testen(7, 8, 7).ToString());

        Console.WriteLine("Res 5: " + Testen(7, 8, 7).ToString());

    }

    private bool Testen(int? start, int? stop, int now)

    {

        return (stop == null || now < stop) || (start != null && now > start);

    }

}