func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 1e5 + 5, INF = 1e9;   bool check(int n, string s) {     for (int i = 1; i <= n; i++)       if (s[i] ==  0 ) return false;     cout << 1 <<     << n - 1 <<     << 2 <<     << n << endl;     return true;   }   void sol(int n, string s) {     for (int i = 1; i <= n; i++)       if (s[i] ==  0 ) {         if (i - 1 >= n / 2)           cout << 1 <<     << i <<     << 1 <<     << i - 1 << endl;         else           cout << i <<     << n <<     << i + 1 <<     << n << endl;         return;       }   }   int main() {     cin.tie(0);     ios::sync_with_stdio(false);     int t;     cin >> t;     while (t--) {       int n;       string s;       cin >> n >> s;       s =  #  + s;       if (!check(n, s)) sol(n, s);     }     return 0;   }   