#include<iostream>
using namespace std;
using ll = long long;

int main(){
    int x1 = 2,x2 = 6;
    int f1,f2;
    cout << "? " << x1 << endl;
    cin >> f1;
    cout << "? " << x2 << endl;
    cin >> f2;
    for(int a = -100; a <= 100; a++){
        for(int b = -100; b <= 100; b++){
            if(a * x1 + b == f1 && a * x2 + b == f2){
                cout << "! " << a << " " << b << endl;
            }
        }
    }
    return 0;
}