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

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int a, b;
    cout << "? 100" << endl;
    cin >> a;
    if(a == 99){
        cout << "! " << 99 << ' ' << 100 << endl;
        return 0;
    }
    cout << "? " << 100 - a - 1 << endl;
    cin >> b;
    //(x + 100) % (b + 1) == a
    //(x + 100 - a - 1) % (b + 1) == b
    int B = b + 1;
    for(int A = 0; A < 99; A++){
        if((A + 100) % B == a && (A + 100 - a - 1) % B == b){
            cout << "! " << A << ' ' << B << endl;
            return 0;
        }
    }
}