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

using i64 = long long;

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);

    auto solve = [&]() {
        int n;
        cin >> n;

        set<pair<int, int>> blocked;

        auto ask = [&](int l, int r) {
            cout << "? " << l + 1 << ' ' << r + 1 << endl;
            i64 s;
            cin >> s >> l >> r;
            l--, r--;
            blocked.emplace(l, r);
            return s;
        };

        vector<int> a(n);

        for (int i = 0; i < n; i++) {
            int j = i;
            while (blocked.count(pair(j, i))) {
                j--;
            }
            i64 s = ask(j, i);
            for (int k = j; k < i; k++) {
                s -= a[k];
            }
            a[i] = s;
        }

        cout << "!\n";
        for (int i = 0; i < n; i++) {
            cout << a[i] << " \n"[i == n - 1];
        }
        cout << flush;
    };
    
    solve();
    
    return 0;
}