using System;

public class Program

{

    public static void Main()

    {

        Array sorted = new int[]{ 10, 20, 30, 40, 50 };

        int myIndex = Array.BinarySearch(sorted, 25);

        Console.WriteLine("Returned value from BinarySearch: " + myIndex);

        Console.WriteLine("Bitwise complement of returned value from BinarySearch: " + ~myIndex);

    }

}