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

ll ask(ll x){
	cout<<"? "<<x<<endl;
	ll R;
	cin>>R;
	return R;
}

void solve(){
	ll b=ask(0);
	ll a=ask(1)-b;
	cout<<"! "<<a<<" "<<b<<endl;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
	
	ll T=1;
	// cin>>T;
	while(T--)
	solve();

}