func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MaxLg = 25, inf = 1e9 + 100;   int n;   bool flag;   vector<int> out, mins[2][MaxLg];   void output() {     if (flag)       cout << -1 <<   n ;     else       cout << out.size() <<   n ;     for (auto i : out) cout << i <<    ;     cout << endl;   }   void input(int a, int b) {     int tmp;     for (int i = 0; i < n; ++i) {       cin >> tmp;       mins[a][b].push_back(tmp);     }   }   void solve() {     for (int i = 0; i < n; ++i) out.push_back(inf);     for (int i = 0; (1 << i) <= n; ++i)       for (int j = 1; j <= n; ++j)         out[j - 1] = min(out[j - 1], mins[!(j & (1 << i))][i][j - 1]);     flag = true;   }   int main() {     cin >> n;     for (int k = 0; k < 2; ++k)       for (int i = 0; (1 << i) <= n; ++i) {         for (int j = 1; j <= n; ++j)           if ((j & (1 << i)) == k * (1 << i)) out.push_back(j);         output();         input(k, i);         out.clear();       }     solve();     output();     return 0;   }   