#include <bits/stdc++.h>   using namespace std;   void Solve() {     long long n;     cin >> n;     vector<int> arr(n);     for (int i = 0; i < n; i++) cin >> arr[i];     reverse(arr.begin(), arr.end());     for (int i = 0; i < n; i++) cout << arr[i] <<    ;     cout <<   n ;   }   int main() {     long long t;     cin >> t;     while (t--) Solve();     return 0;   }   