#include <iostream>
using namespace std;

int main(){
  cout << "? 100" << endl;
  int x;cin>>x;
  if(x == 99){
    cout << "! " << 99 << " " << 100 << endl;
  }else{
    cout << "? " << 100-(x+1) << endl;
    int y;cin>>y;
    int B = y+1;
    int A = (x+y+-99+B*100)%B;
    cout << "! " << A << " " << B << endl;
  }
}