class Animal:
class Animal; def __init__(,)
class Animal; def aruku()
class Animal; def get_ashi()
class Animal; def get_namae()
class Animal; def naku()
class Dog(Animal):
class Dog; def __init__(,,)
class Dog; def ouchi()
class Dog; def sanpo(,)
class Snake(Animal):
class Snake; def __init__(,,)
class Snake; def aruku()
class Snake; def kamu()
class ~; def main()
