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

using ll = long long;

void ask(int l, int r) {
    cout << "? " << l << " " << r << endl; // endlでflush
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n;
    cin >> n;

    ll total = 1LL * n * (n + 1) / 2;

    vector<ll> pref(n + 1, 0); // pref[i] = sum(1..i)
    for (int i = 2; i <= n - 1; i++) {
        ask(1, i);
        cin >> pref[i];
    }

    ll sum2n;
    ask(2, n);
    cin >> sum2n;

    vector<ll> ans(n + 1);

    ans[1] = total - sum2n;
    pref[1] = ans[1];

    for (int i = 2; i <= n - 1; i++) {
        ans[i] = pref[i] - pref[i - 1];
    }

    ans[n] = total - pref[n - 1];

    cout << "! ";
    for (int i = 1; i <= n; i++) {
        if (i > 1) cout << ' ';
        cout << ans[i];
    }
    cout << endl; // 念のためflush
    return 0;
}