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