#include <cassert> // assert
#include <cstdlib> // exit
#include <iostream> // cin, cout, ios
#include <utility> // swap
#include <boost/multiprecision/cpp_int.hpp>
#include <boost/multiprecision/miller_rabin.hpp>
#include <boost/random/mersenne_twister.hpp>
namespace mp = boost::multiprecision;
using bigint = mp::cpp_int;

void check(bigint n, bigint v) {
	bigint g = mp::gcd(v, n);
	if(g > (bigint)2 && g < n) {
		std::cout << "! " << g << " " << n / g << '\n';
		std::exit(0);
	}
}

int main() {
    std::cin.tie(nullptr);
    std::ios::sync_with_stdio(false);
	boost::random::mt19937 gen;
	bigint n, r;
    std::cin >> n;
    check(n, (bigint)3);
    for(bigint a = (bigint)2; a < n; a += (bigint)1) {
    	check(n, a);
	    std::cout << "? " << a << '\n';
	    std::cin >> r;
		if((r & (bigint)1) == (bigint)0) {
			r >>= 1;
		}
		for(bigint b = (bigint)0; b < (bigint)99; b += (bigint)1) {
			check(n, mp::powm(a + b, r, n) - (bigint)1);
		}
    }
}