#include<iostream>
#include<algorithm>

using namespace std;

int t, n, w;

int Ask(int x, int y){
  int ans;
  cout << "? " << x + 1 << " " << y + 1 << endl;
  cin >> ans;
  return ans;
}

void Ans(int x, int y){
  int ans;
  cout << "! " << x + 1 << " " << y + 1 << endl;
  cin >> ans;
  if(ans == -1) exit(0);
}

int main(){
  cin >> t;
  while(t--){
    cin >> n;
    int x = 0, y = (n + 1) / 2, d = 0, p;
    w = Ask(x, y);
    while(w == n / 2){
      if(!(n & 1)) x++, y++;
      else if(y - x == (n + 1) / 2) x++;
      else y++;
      w = Ask(x, y);
    }
    int a = Ask((x + 1) % n, y), b = Ask((x + n - 1) % n, y);
    d = n / 2 - (w - 1);
    if(a >= w && b >= w) p = x;
    else if(a < w){
      if(y - x - 1 == n / 2) x++, w = a, d = n / 2 - (a - 1);
      int l = 1, r = n / 2;
      while(l <= r){
        int mid = (l + r) >> 1;
        if(Ask((x + mid) % n, y) == w - mid) l = mid + 1;
        else r = mid - 1;
      }
      p = (x + l - 1) % n;
    } else if(b < w){
      if(n - (y - x + 1) == n / 2) x = (x + n - 1) % n, w = b, d = n / 2 - (b - 1);
      int l = 1, r = n / 2;
      while(l <= r){
        int mid = (l + r) >> 1;
        if(Ask((x + n - mid) % n, y) == w - mid) l = mid + 1;
        else r = mid - 1;
      }
      p = (x + n - l + 1) % n;
    }
    if(Ask(p, (p + d) % n) == 1) Ans(p, (p + d) % n);
    else Ans(p, (p + n - d) % n);
  }
  return 0;
}