using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
public class MainClass{
public static void Main(string[] args){
String[] First = { "One", "Two", "Two", "Three", "Four" };
String[] Second = { "Three", "Four", "Five", "Six" };
var ShowUnion = First.Union(Second);
Console.WriteLine("Union:");
foreach (String ThisElement in ShowUnion)
Console.WriteLine(ThisElement);
}
}