func_code_string: #include <bits/stdc++.h>   using namespace std;   void solve() {     int n;     cin >> n;     string st;     cin >> st;     bool ev = false, od = false;     for (int i = 0; i < n; i++) {       if (st[i] % 2 == 1 and i % 2 == 0)         od = true;       else if (st[i] % 2 == 0 and i % 2 == 1)         ev = true;     }     if (n & 1) {       if (od) {         cout <<  1 n ;       } else         cout <<  2 n ;     } else {       if (ev)         cout <<  2 n ;       else         cout <<  1 n ;     }   }   int main() {     int tc;     cin >> tc;     while (tc--) solve();   }   