#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main () {
    int N;
    cin >> N;
    vector<ll> sum(N + 1);
    sum[N] = ((ll)N * (N + 1)) / 2;
    cout << "? " << 2 << " " << N << endl;
    sum[0] = 0;
    cin >> sum[1];
    sum[1] = sum[N - 1] - sum[1];
    for (int i = 1; i < N - 1; i ++) {
        cout << "? " << 1 << " " << i + 1 << endl;
        cin >> sum[i + 1];
    }
    cout << "! ";
    for (int i = 0; i < N; i ++) {
        cout << sum[i + 1] - sum[i] << (i < N - 1 ? " " : "");
    }
    cout << endl;
}