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

#define rep(i, n) for (int i = 0; i < (int)n; i++)
int main() {
  int x1, x2, y1, y2;
  x1 = 1;
  x2 = 6;
  cout << "? " << x1 << endl;
  cin >> y1;
  cout << "? " << x2 << endl;
  cin >> y2;
  int a = (y1 - y2) / (x1 - x2);
  int b = y1 - a * x1;
  cout << "! " << a << " " << b << endl;
  return 0;
}