func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int a;     cin >> a;     int i = 1;     while (true) {       int cnt = i / 2 + 1;       if (cnt == a) {         break;       }       ++i;     }     cout << i <<     << 2 << endl;     cout <<  1 2 n ;     return 0;   }   