// C# program to illustrate the
// List.AddRange Method
using System;
using System.Collections.Generic;
class Geeks {
    // Main Method
    public static void Main(String[] args)
        // Creating a List of Strings
        List<String> firstlist = new List<String>();
        // adding elements in firstlist
        firstlist.Add("Geeks");
        firstlist.Add("GFG");
        firstlist.Add("C#");
        firstlist.Add("Tutorials");
        Console.WriteLine("Before AddRange Method");
        Console.WriteLine();
        // displaying the item of List
        foreach(String str in firstlist)
            Console.WriteLine(str);
        Console.WriteLine("\nAfter AddRange Method\n");
        // Here we are using AddRange method
        // Which adds the elements of firstlist
        // Collection in firstlist again i.e.
        // we have copied the whole firstlist
        // in it
        firstlist.AddRange(firstlist);
        // displaying the item of List
        foreach(String str in firstlist)
            Console.WriteLine(str);
                                                                
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