#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

void solve() {
  cout << "? 0\n";
  cout.flush();
  ll b;
  cin >> b;
  cout << "? 1\n";
  cout.flush();
  ll a;
  cin >> a;
  a -= b;
  cout << "! " << a << ' ' << b << '\n';
}

int main() {
  std::cin.tie(nullptr);
  std::ios_base::sync_with_stdio(false);
  int T = 1;
  for (int t = 0; t < T; t++) {
    solve();
  }
  return 0;
}