using System;

using System.Linq;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        var numbers = new int[]{1, 2, 3};

        var numbers2 = new int[]{3, 1, 2, 4};

        numbers.Where(x => x != 1).ToList().ForEach(z =>

        {

            Console.WriteLine(z);

        }

​

        );

        IEnumerable<int> difference = numbers2.Except(numbers);

        if (!difference.Any())

        {

            Console.WriteLine("No difference");

        }

        else

        {

            Console.WriteLine("different");

        }

​

        List<string> a1 = new List<string>{"foo", "bar"};

        List<string> a2 = new List<string>{"foo", "ba"};

        Console.WriteLine(a1.SequenceEqual(a2));

    }

}