func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int a = 0, b = 0, c = 0, d = 0, n, temp, dl;     cin >> n;     for (int i = 0; i <= n; i++) {       if (i < n) {         cin >> temp;       } else {         temp = max(a, d) + 1;       }       dl = temp - a;       if (dl != 1 && dl != -1) {         if (!b) {           b = i + 1;           d = temp;         } else if (!c) {           c = i;         } else {           b = 0;           c = 0;           break;         }       } else if (!c && b) {         if (dl != -1) {           b = 0;           c = 0;           break;         }       }       a = temp;     }     cout << b <<     << c;   }   