for i in range(4): 
bob.fd(100) 
bob.lt(90)

from random import randint
print('Ghost Game')
feeling_brave = True
score = 0
while feeling_brave:
    ghost_door = randint (1, 3)
    print ('Three doors ahead...')
    print ('A ghost behind one.')
    print ('Which door do you open?')
    door = input('1, 2, or 3?')
    door_num = int(door)
    if door_num == ghost_door:
        print ('Ghost!')
        feeling_brave = False
    else:
        print('No ghost!')
        print ('You enter the next room.')
        score = score + 1
print ('Run away!')
print ('Game over! You scored', score)