func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     while (t--) {       int n, a;       vector<int> v;       cin >> n;       for (int i = 0; i < n; i++) {         cin >> a;         v.push_back(a);       }       reverse(v.begin(), v.end());       for (int i = 0; i < n; i++) {         cout << v[i] <<    ;       }       cout << endl;     }   }   