#include <bits/stdc++.h>
 
using namespace std;
using i64 = long long;
using u64 = unsigned long long;
using u32 = unsigned;
using pii = pair<int,int>;

int main(){
    cin.tie(nullptr);
	ios::sync_with_stdio(false);

	int t;
	cin >> t;
	while(t--){
		int r;
		for ( int i = 1923; i <= 2023; i++){
			cout << "?" << i << endl;
			cin >> r;
			if ( r == 1){	
				cout << "!" << i << endl;
				break;
			}		
		}
	}

	return 0;
}