**from turtle import ***

class Ourturtle():

def init(self):

self.tt = Turtle()

def shape(self,x):

self.tt.shape(x);

class Car(Ourturtle):

def go(self,x):

for i in range(x):

self.tt.left(90)

self.tt.forward(100)

for i in range(4-x):

self.tt.left(90)

def move(self,x):

if x == up:

self.go(1)

elif x == down: