using System;
public class a_b
{
    private static void Main()
    {
        long n, top = 0, t;
        long[] stack = new long[1000010];
        string[] does= new string[3];
        string way;
        t=int.Parse(Console.ReadLine());
        for(int i = 1; i <= t; i++)
        {
            n=int.Parse(Console.ReadLine());
            for(int j = 1; j <= n; j++)
            {
                way = Console.ReadLine();
                does = way.Split(" ");
                if (does[0] == "push")
                {
                    top++;
                    stack[top] = int.Parse(does[1]);
                }
                else if (does[0] == "pop")
                {
                    if (top == 0)
                    {
                        Console.WriteLine("Empty");
                    }
                    else
                    {
                        top--;
                    }
                }
                else if (does[0] == "size")
                {
                    Console.WriteLine(top);
                }
                else
                {
                    if(top == 0)
                    {
                        Console.WriteLine("Anguei!");
                    }
                    else
                    {
                        Console.WriteLine(stack[top]);
                    }
                }
            }
            top = 0;
        }
    }
}