Entertainment in MAC(Round 932)

#include #define endl '\n'using ll = long long;typedef unsigned long long ull;using namespace std;void GordenGhost();signed main() {#ifdef Gorden    freopen("in.txt", "rt", stdin);    freopen("out.txt", "wt", stdout);#endif    ios::sync_with_stdio(false);    cin.tie(nullptr), cout.tie(nullptr);    int t;    cin>>t;    while (t--)        GordenGhost();    return 0;}void GordenGhost() {    int n;    cin>>n;    string s1,s2;    cin>>s2;    s1=s2;    reverse(s2.begin(),s2.end());    if (s1