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// https://codeforces.com/contest/2162/problem/D #include <iostream> using namespace std; const int mxN = 2e5, MOD = 1e9 + 7; void solve() { int n ; cin >> n; int st = 1, dr = n, mid, l = -1, r = -1; while(st <= dr) { mid = (st + dr) / 2; cout << "1 1 " << mid << endl; int sum1,sum2; cin >> sum1; cout << "2 1 " << mid << endl; cin >> sum2; if(sum2 > sum1) dr = mid-1, l = mid; else st = mid + 1; } int sum1, sum2; cout << "1 1 " << n << endl; cin >> sum1; cout << "2 1 " << n << endl; cin >> sum2; int len = sum2 - sum1; cout << "! " << l << ' ' << l + len - 1 << endl; } int main() { int t; cin >> t; while(t--) solve(); return 0; }
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