#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  cout << "? 100" << endl;
  int x;
  cin >> x;
  if (x == 99) {
    // a = 99; b = 100
    printf("! 99 100");
  }
  else {
    // A + 100 = x mod B
    // A + (100 - x) = 0 mod B
    // A + (99 - x) = -1 mod B
    printf("? %d", 99 - x);
    cout << endl;
    int y;
    cin >> y;
    // A + 100 = x mod (y + 1)
    // A = x - 100 mod (y + 1)
    printf("! %d %d", (x - 100 + (y + 1) * 100) % (y + 1), y + 1);
  }
  cout << endl;
  return 0;
}