#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <cmath>
#include <iomanip>
#include <stack>
#include <queue>
#include <numeric>
#include <map>
#include <unordered_map>
#include <set>
#include <fstream>
#include <chrono>
#include <random>
#include <bitset>
//#include <atcoder/all>
#define rep(i,n) for(int i=0;i<(n);i++)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sz(x) ((int)(x).size())
#define pb push_back
using ll = long long;
using namespace std;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
ll gcd(ll a, ll b) {return b?gcd(b,a%b):a;}
ll lcm(ll a, ll b) {return a/gcd(a,b)*b;}

int main(){
  cout << "? 100" << endl;
  int a1; cin >> a1;
  if(a1==99){
    cout << "! 99 100" << endl;
    return 0;
  }
  cout << "? " << 100-a1-1 << endl;
  int a2; cin >> a2;
  for(int b=0;b<=100;b++){
    for(int a=0;a<b;a++){
      if((a+100)%b==a1 && (a+100-a1-1)%b==a2){
        cout << "! " << a << ' ' << b << endl;
        return 0;
      }
    }
  }
  
  return 0;
};