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

#define all(a) a.begin(),a.end()
#define pb push_back
#define sz(a) ((int)a.size())

signed main(){
    ios_base::sync_with_stdio(0),cin.tie(0);
    cout << "? 100" << endl;
    int x; cin >> x;
    if(x==99){
        cout << "! 99 100" << endl;
        return 0;
    }
    cout << "? " << 100-x-1 << endl;
    int b; cin >> b; b++;
    cout << "! " << (b-(100-x)%b)%b << ' ' << b << endl;
}