public class Card
{
	String toWhom;

	public Card(String name)
	{
		toWhom = name;
		System.out.println("\nDear " + toWhom + "!");
	}

	public static void main (String[] args)
	{
		Card card = new Holiday("Charlie");
		        card = new AprilFool("Fred");

		//  Holiday hol = new Card("fill the blank");    you cannot do it!
	}
}


class Holiday extends Card
{
	public Holiday(String name)
	{
		super(name);
		System.out.println("Season's Greetings!");
	}
}


class AprilFool extends Holiday
{
	public AprilFool(String name)
	{
		super(name);
		System.out.println("Just Kidding!");
	}
}