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

int main(){
	int N;
	cin >> N;
	cout << '?';
	for(int i=0;i<N-1;i++){
		int u,v;
		cin >> u >> v;
		cout << ' ' << u;
	}
	cout << endl;
	string S;
	cin >> S;
	cout << S << endl;
}