#include <bits/stdc++.h>
using namespace std;
class Solution{
	public:
	vector<int>intersection(vector<int>&nums1,vector<int>&nums2){
		vector<int>result;
		for(int i=0;i<nums1.size();i++){
			for(int j=0;j<nums2.size();j++){
				if(nums1[i]==nums2[j]){
					result.push_back(nums1[i]);
					break;
				}
			}
		}
		sort(result.begin(),result.end());
		result.erase(unique(result.begin(),result.end()),result.end());
		return result;
	}
};
int main() {
 Solution s;
 vector<int>nums1{1,2,2,1};
 vector<int>nums2={2,2};
 vector<int>ans=s.intersection(nums1,nums2);
 cout<<"Intersection:";
 for(int x: ans){
 	cout<<x<<" ";
 }
	return 0;
}

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