#include <bits/stdc++.h>
using namespace std;
struct jie{
	int a;
	int aa[1000000];
	string s;
};
jie b[10000] ;
int main() {
    int n;
    cin >> n ;
    for(int i=0;i<n;i++){
    	cin>>b[i].a;
    	cout<<b[i].a<<" ";
    	for(int j=0;j<b[i].a;j++){
    		cin>>b[i].aa[j];
    		cout<<b[i].aa[j]<<" "; 
		}
		cin>>b[i].s;
		cout<<b[i].s<<endl;
			
	} 
    
    return 0;
}