using System;
using System.Collections.Generic;
using System.Linq;
public class Program
{
public static void Main()
int[] nums1 = {1, 2, 2, 1};
int[] nums2 = {2, 2};
var q = nums1.Intersect(nums2);
//foreach(int v in q){
Console.WriteLine(q.ToArray());
//}
//int[] q = nums1.Distinct().ToArray();
//for(var i=0 ;i<q.Length ;i++){
//Console.WriteLine(q[i]);
}
