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