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

int main(){
  ll x1=2,x2=3;
  cout<<'?'<<" "<<x1<<endl;
  ll r1;
  cin>>r1;
  cout<<'?'<<" "<<x2<<endl;
  ll r2;
  cin>>r2;
  set<P> st;
  for(ll b=0;b<=100;b++){
    for(ll a=0;a<b;a++){
      if((x1+a-r1)%b==0&&(x2+a-r2)%b==0){
        if((x1+a-r1)>=0&&(x2+a-r2)>=0){
          st.insert(P(a,b));
        }
      }
    }
  }
  for(auto u:st){
    if(u.second!=1){
      cout<<u.first<<" "<<u.second<<endl;
      exit(0);
    }
  }
  for(auto u:st){
    cout<<u.first<<" "<<u.second<<endl;
    exit(0);
  }
}