#ifdef ONLINE_JUDGE #include #else #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #endif using namespace std; // lambda : [] (int a, int b) -> bool { body return } // string r_str = R"(raw string)" #define mp make_pair #define mt make_tuple #define eb emplace_back #define pb push_back #define fi first #define se second #define LL long long #define ULL unsigned long long #define PI (atan(1) * 4) #define BASE 73 #define NMAX 10000 #define NMAX2 20001 #define MOD1 1000000007 #define ALL(V) (V).begin(), (V).end() #define ALLR(V) (V).rbegin(), (V).rend() #define CRLINE Duxar(__LINE__); #define SHOWME(x) cerr << __LINE__ << ": " << #x << " = " << (x) << endl; #define ENTER putchar('\n'); int dx4[] = {-1, 0, 1, 0}; int dy4[] = {0, 1, 0, -1}; int dx8[] = {-1, -1, 0, 1, 1, 1, 0, -1}; int dy8[] = {0, 1, 1, 1, 0, -1, -1, -1}; void Duxar(int _this_line) { #ifndef ONLINE_JUDGE printf("\n . . . . . . . . . . . . . Passed line - %d\n", _this_line); #endif } bool AreEqual(double a, double b) { return (fabs(a - b) < 1e-10); } template bool GetNr(T &_value) { T _sign = 1; char ch; _value = 0; while(!isdigit(ch = getchar())) { if (ch == -1) { return false; } ch == '-' ? _sign = -1 : _sign = 1 ; } do { _value = _value * 10 + (ch - '0'); } while(isdigit(ch = getchar())); _value *= _sign; return true; } template void PutNr(T _value, char _ch = ' ') { cout << _value << _ch; } int N, GM; vector ans; bool Ask(int x, int y) { cout << 1 << ' ' << x << ' ' << y << '\n'; cout.flush(); cin >> x; return x; } int main(){ string fileInput = "sum"; #ifdef INFOARENA freopen((fileInput + ".in").c_str(), "r", stdin); freopen((fileInput + ".out").c_str(), "w", stdout); #else #ifndef ONLINE_JUDGE // freopen("/Users/duxar/Workplace/Xcode Projects/Selectie/Selectie/input", "r", stdin); // freopen("/Users/duxar/Workplace/Xcode Projects/Selectie/Selectie/result", "w", stdout); #endif #endif int i, st, en, pw; bool segment; cin >> N; GM = 8 * N; st = 1, en = N; segment = false; if (N == 1) { cout << 2 << ' ' << 1 << ' ' << 1; cout.flush(); return 0; } while (st < en) { for (pw = 1 << 6; pw > 1; pw >>= 1) { if (st + pw - 1 <= N) { if (Ask(st, st + pw - 1)) { if (segment == false) { segment = true; ans.pb(st); st += pw; break; } st += pw; } else { if (pw == 2 && segment == true) { ++st; segment = false; } else if (pw == 2 && segment == false) { ans.pb(st); st++; } } } } } if (st == en) { if (!Ask(N - 1, N)) ans.pb(st); } cout << 2 << ' '; cout << ans.size() << ' '; for (i = 0; i < ans.size(); ++i) { cout << ans[i] << ' '; } cout << '\n'; cout.flush(); return 0; }