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

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int rand(int l, int r) {
	return uniform_int_distribution<>(l, r)(rng);
}

int main() {
	int c = 1;
	cout << "? " << c << endl;
	int x, y;
	cin >> x;
	int d = rand(x - 1, 100);
	cout << "? " << d << endl;
	cin >> y;
	for (int A = 0; A <= 100; A ++) {
		for (int B = A + 1; B <= 100; B ++) {
			if ((c + A) % B == x && (d + A) % B == y) {
				cout << "! " << A << " " << B;
				return 0;
			}
		}
	}
	return 0;
}
// 7 10