#include <bits/stdc++.h>
using namespace std;
long long S12, S23, S13;
vector<long long> ans(8);
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout << "? 1 2" << endl;
    cin >> S12;
    cout << "? 2 3" << endl;
    cin >> S23;
    cout << "? 1 3" << endl;
    cin >> S13;
    long long A = (S12 + S13 - S23) / 2;
    long long B = S12 - A;
    long long C = S13 - A;
    ans[1] = A;
    ans[2] = B;
    ans[3] = C;
    for (int i = 4; i <= 7; i++) {
        cout << "? 1 " << i << endl;
        long long S1i;
        cin >> S1i;
        ans[i] = S1i - A;
    }
    cout << "!";
    for (int i = 1; i <= 7; i++) cout << " " << ans[i];
    cout << endl;
    return 0;
}