func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long int p;     cin >> p;     for (long long int z = 0; z < p; z++) {       long long int n;       cin >> n;       while (1) {         break;       }       string a;       cin >> a;       long long int re = 0, ro = 0, be = 0, bo = 0;       for (long long int i = 0; i < n; i++) {         if (i % 2 == 0) {           if (a[i] % 2 == 0) {             re++;           } else             ro++;         } else {           if (a[i] % 2 == 0) {             be++;           } else             bo++;         }       }       while (1) {         break;       }       if (n % 2 == 0) {         if (be > 0)           cout <<  2 n ;         else           cout <<  1 n ;         while (1) {           break;         }       } else {         while (1) {           break;         }         if (ro > 0)           cout <<  1 n ;         else           cout <<  2 n ;         while (1) {           break;         }       }     }   }   