package ocjp;

class Creature {}
class Bird extends Creature {}
class Falcon extends Bird {}

public class Program6 {

	public static void main(String[] args) {
			Creature c1 = new Creature();
			Creature c2 = new Bird();
			Bird b1 = (Bird) c1; // Line 1	
			Bird b2 = (Falcon) c2; // Line 2
			Bird b3 = (Bird)c2; // Line 3
			Bird b4 = new Falcon(); // Line 4
			Bird b5 = (Bird) new Creature(); // Line 5
			Falcon f1 = b4; // Line 6
			
			System.out.println("succuess");
		}
	}