#include<bits/stdc++.h>

using namespace std;

int main(){
    int fx1,fx2;
    cout << "? 1" << endl;
    cin >> fx1;
    cout << "? 2" << endl;
    cin >> fx2;
    cout << "! " << fx2 - fx1 << " " << fx1 - (fx2 - fx1) << endl;
    return 0;
}