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

void push(int a,vector<int>f){
	f.push_back(a);
}
void pop(vector<int>f){
	if(f.size()==0){
		cout<<"Empty"<<endl;
	}
	else{
		f.pop_back();
	}
}
void query(vector<int>f){
	if(f.size()==0){
		cout<<"Anguei!"<<endl;
	}
	else{
		cout<<f[f.size()-1]<<endl;
	}
}
void size(vector<int>f){
	cout<<f.size()<<endl;
}
int main() {
    int a;
    cin>>a;
    for(int i=1;i<=a;i++){
    	vector<int>f;
		int b;
		cin>>b;
		for(int j=1;j<=b;j++){
			string s;
			getline(cin,s);
			if(s[0]=='p'&&s[1]=='u'&&s[2]=='s'&&s[3]=='h'){
				push((int)s[5]-48,f);
			}
			else if(s[0]=='p'&&s[1]=='o'&&s[2]=='p'){
				pop(f);
			}
			else if(s[0]=='q'&&s[1]=='u'&&s[2]=='e'&&s[3]=='r'&&s[4]=='y'){
				query(f);
			}
			else if(s[0]=='s'&&s[1]=='i'&&s[2]=='z'&&s[3]=='e'){
				size(f);
			}
		}
	}
	return 0;
}