开long long33pts,改成unsigned long long66pts,不会改了，求调QAQ（跪

#include <bits/stdc++.h>
using namespace std;
int T,n;
string s;
stack<unsigned long long> num;
int main(){
	cin>>T;
	while(T--){
		cin>>n;
		while(n--){
			cin>>s;
			if(s=="push"){
				unsigned long long x;
				cin>>x;
				num.push(x);
			}else if(s=="pop"){
				if(num.empty()){
					cout<<"Empty"<<endl;
				}else{
					num.pop();
				}
				continue;
			}else if(s=="query"){
				if(num.empty()){
					cout<<"Anguei!"<<endl;
				}else{
					cout<<num.top()<<endl;
				}
			}else{
				cout<<num.size()<<endl;
			}
		}
	}
	return 0;
}