#include <stdio.h>
#include <vector>
using namespace std;
 
int main()
{
	int n;
	scanf("%d",&n);
 
	//vector < vector <int> > val(n,vector <int>(5));
	vector <vector <int> > val;
 
 
	int size=0;
	for(int i=0;i<n;i++)
	{
 
		scanf("%d",&size);
		int temp;
		vector <int> cur;
		for(int j=0;j<size;j++)
		{
			scanf("%d",&temp);
			cur.push_back(temp);
		}
		val.push_back(cur);
	}
 
 
 
 
	for(int i=0;i<n;i++)
	{
		for(int j=0;j<val[i].size();j++)
		{
			printf("%d ",val[i][j]);
		}
		printf("\n");
	}
 
	return 0;
}

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