using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        int[] FirstArray = { 1, 2, 3, 3, 8, 8, 8, 9, 10 };  

        int[] SecondArray = { 2, 3, 3, 4, 5, 6, 7, 8 , 8 };  

        Console.WriteLine("Elements of FirstArray:{ 1, 2, 3,8,9,10 }");  

        Console.WriteLine("Elements of SecondArray:{ 2, 3, 4,5,6,7 }");  

        Console.WriteLine("Intersect Result");  

        int[] Results = FirstArray.Intersect(SecondArray).ToArray();  

        foreach (int Result in Results)  

        {  

          Console.WriteLine("{0} ", Result);  

        }  

    }

}