---

if wall_from_up():
	move_right()
	fill_cell()
	move_down()
	fill_cell()
	move_left()
	move_up()

elif wall_from_down():
	move_up()
	move_right()
	fill_cell()
	move_down()
	move_left()

else:
	move_down()
	fill_cell()
	move_right()
	move_up()
	fill_cell()
	move_down()