using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var firstList = new List<int>();

        var secondList = new List<int>();

        firstList.Add(2);

        firstList.Add(4);

        firstList.Add(6);

        secondList = firstList;

        Console.WriteLine("LIST 1: " + firstList.Count);

        Console.WriteLine("LIST 2: " + secondList.Count);

        firstList.Clear();

        Console.WriteLine("LIST 2: " + secondList.Count);

    }

}