using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        // Assign two arrays.

        int[] array1 = { 1, 2, 3 };

        int[] array2 = { 2, 3, 4 };

        // Call Intersect extension method.

        var intersect = array1.Intersect(array2);

        // Write intersection to screen.

        Console.WriteLine("intersect");

        foreach (int value in intersect)

        {

            Console.WriteLine(value); // Output: 2, 3

        }

        var nonintersect = array1.Except(array2).Union( array2.Except(array1));

        Console.WriteLine("Non intersect");

        foreach (int value in nonintersect)

        {

            Console.WriteLine(value); // Output: 2, 3

        }

    }

}