using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        List<int> numeros = new List<int>(){2,4,6};

        IEnumerable<int> numerosPares = from n in numeros where (n % 2) == 0 select n;

        Console.WriteLine("Primeira execucao");

        foreach(var n in numerosPares)

        {

             Console.WriteLine(n);

        }

        numeros.AddRange(new int[]{8,10,12});

        Console.WriteLine("\nSegunda execucao");

        foreach(var n in numerosPares)

        {

             Console.WriteLine(n);

        }

    }

}