public abstract class Card {

	private int type;

	public Card(int type) {
		this.type = type;
	}

	public abstract void function();

	public abstract int function(int c);

	public int real_function(int c) {
		return c * 2;
	}

	protected void pro_function() {
		System.out.println("PRO");
	}

	private void prv_function() {
		System.out.println("PRV");
	}
}