#include <bits/stdc++.h>
 
using namespace std;
using i64 = long long;
using u64 = unsigned long long;
using u32 = unsigned;
using pii = pair<int,int>;
void solve(){
	for ( int i = 1923; i <= 2022; i++){
		cout << "? " << i << endl;
		int t;
		cin >> t;
		if ( t == 1){
			cout << "! " << i << endl;
			return ;
		}
	}	
	cout << "! " << 2023 << endl;
	return;
}
int main(){
    // cin.tie(nullptr);
	// ios::sync_with_stdio(false);

	int t;
	cin >> t;
	while(t--){
		solve();

	}

	return 0;
}