#include <iostream>
#include <vector>
using namespace std;

int main() {
	int t;
	cin >> t;
	while (t--){
		int n;
		cin >> n;
		vector<int>v;
		for(int i=0; i<n; i++){
			int k;
			cin >> k;
			v.push_back(k);
		}
		for(int u:v)cout << u << " ";
	}
	return 0;
}