5
5 3
2 4
3 1
4 5
 4
2 4
3 2
2 1
 5
5 3
2 4
3 1
4 5
 2
1 2
 4
3 4
2 3
3 1
 10
8 10
2 9
7 8
4 1
7 3
4 7
2 5
2 4
4 6
 5
3 4
3 2
3 1
1 5
 3
1 2
2 3
 5
1 2
1 3
1 4
1 5

1 2
2 3
2 4
 1 3
2 4
3 5
4 5
 1 2
 1 3
2 3
3 4
 1 4
2 4
2 5
2 9
3 7
4 6
4 7
7 8
8 10
 1 3
1 5
2 3
3 4
 1 2
2 3
 1 2
1 3
1 4
1 5

#include <bits/stdc++.h>
using namespace std;
signed main() {
  int n;
  cin >> n;
  vector<pair<int, int>> gr;
  set<int> a;
  for (int i = 0; i < n; ++i) {
    a.insert(i);
  }
  while (a.size()) {
    int v = *a.begin();
    a.erase(v);
    cout << "? " << v + 1 << endl;
    for (int i = 0; i < n; ++i) {
      int d;
      cin >> d;
      if (d == 1) {
        gr.emplace_back(v + 1, i + 1);
        a.erase(i);
      }
    }
  }
  for (auto i : gr) {
    cout << i.first << " " << i.second << endl;
  }
}
