using System;

using System.Linq;

using System.Collections.Generic;

public class Program {

    public static void Main() {

        var list1 = Enumerable.Repeat(1, 100000).ToList();

        var list2 = new List<int>(); 

        var list3 = new List<int>();

        var sw    = new System.Diagnostics.Stopwatch();

        sw.Start();

        foreach(var x in list1) list2.Add(x);

        sw.Stop();

        Console.WriteLine(sw.ElapsedMilliseconds);

        sw.Reset();

        sw.Start();

        list1.ForEach(x => list3.Add(x));

        sw.Stop();

        Console.WriteLine(sw.ElapsedMilliseconds);  }

}