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

int main() {
	int A, B;
	cout << "? 1" << endl;
	cin >> A;
	cout << "? 2" << endl;
	cin >> B;
	int a = B - A;
	int b = A - a;
	cout << "! " << a << " " << b << endl;
	return 0;
}