# Copyright 2017, 2013, 2011 Pearson Education, Inc., W.F. Punch & R.J.Enbody
class Animal(object):
    def __init__(self, island, x=0, y=0, s="A"):
        '''Initialize the animals and their positions
        '''
        self.island = island
        self.name = s
        self.x = x
        self.y = y
            
    def __str__(self):
        return self.name

class Prey(Animal):
    def __init__(self, island, x=0,y=0,s="O"):
        Animal.__init__(self,island,x,y,s)

class Predator(Animal):
    def __init__(self, island, x=0,y=0,s="X"):
        Animal.__init__(self,island,x,y,s)