using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        int [] value1 = {1,2,3,4};

        int [] value2 = {1,2,3};

        //Removes the value from first array that equals the value in second array

        var value3 = value1.Except(value2);

        foreach (var element in value3)

    {

        Console.WriteLine(element);

    }

    }

}