func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t, n, w;     string s;     cin >> t;     while (t--) {       cin >> n >> s;       bool flag = 0;       if (n % 2) {         for (int i = 0; i < n; i += 2) {           if ((s[i] -  0 ) % 2) {             flag = 1;             break;           }         }         w = flag ? 1 : 2;         cout << w << endl;       } else {         for (int i = 1; i < n; i += 2) {           if ((s[i] -  0 ) % 2 == 0) {             flag = 1;             break;           }         }         w = flag ? 2 : 1;         cout << w << endl;       }     }   }   