using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var foo = new List<int>() {1, 2, 3};

        var bar = new List<int>() {2, 3};

        foo.AddRange(bar);

        foreach(var i in foo){

          Console.WriteLine(i);

        }

    }

}