#include <bits/stdc++.h>
using namespace std;

int main() {
  int N, S, sum = 0; cin >> N;
  vector<int> Answer;
  cout << "? " << 2 << ' ' << N << endl;
  cin >> S;
  Answer.push_back((N + 1) * N / 2 - S - sum);
  sum += Answer.at(0);

  for (int i = 2; i < N; i++) {
    cout << "? " << 1 << ' ' << i << endl;
    cin >> S;
    Answer.push_back(S - sum);
    sum += Answer.at(i - 1);
  }
  Answer.push_back((N + 1) * N / 2 - sum);

  cout << "! ";
  for (int i = 0; i < (int)Answer.size(); i++) {
    if (i > 0) cout << ' ';
    cout << Answer.at(i);
  }
  cout << endl;
}