using System;
using System.Collections;

namespace CollectionsTest2
{
	public class Dog 
	{
		public string name;
		public Dog (string s) 
		{
			name = s;
		}
	}
	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class Class1
	{
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			Dog d1, d2, d3, d4;
			d1 = new Dog ("FIFO");
			d2 = new Dog ("FILO");
			d3 = new Dog ("LIFO");
			d4 = new Dog ("LILO");
        
			/*ArrayList a = new ArrayList();
			a.Add(d1);
			a.Add(d2);
			a.Add(d3);
			a.Add(d4);
			Dog temp = (Dog)a[0];
			*/

			Stack s = new Stack();
			s.Push(d1);
			s.Push(d2);
			s.Push(d3);
			s.Push(d4);
			
			Dog temp = (Dog)(s.Pop());
			Console.WriteLine(temp.name);
			Console.ReadLine();
		}
	}
}