func_code_string: #include <bits/stdc++.h>   using namespace std;   long long int n, a, b, signo, dist, centro;   vector<pair<long long int, long long int> > distancias;   vector<long long int> izq, der;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cin >> n;     a = 1;     b = 2;     for (int i = (3); i <= (n); i++) {       cout <<  2   << a <<     << b <<     << i << endl;       cin >> signo;       if (signo > 0) b = i;     }     for (int i = (1); i <= (n); i++) {       if (i == a || i == b) continue;       cout <<  1   << a <<     << b <<     << i << endl;       cin >> dist;       distancias.push_back({-dist, i});     }     sort(distancias.begin(), distancias.end());     centro = 0;     for (auto d : distancias) {       if (centro == 0) {         centro = d.second;         continue;       }       cout <<  2   << a <<     << centro <<     << d.second << endl;       cin >> signo;       if (signo > 0)         izq.push_back(d.second);       else         der.push_back(d.second);     }     reverse(der.begin(), der.end());     cout <<  0   << a <<    ;     for (auto n : der) cout << n <<    ;     cout << centro <<    ;     for (auto n : izq) cout << n <<    ;     cout << b << endl;     return 0;   }   