for i in range(12):
    if free_from_up():
        fill_cell()
        move_right()
    else:
        move_right()
for i in range(1):
    if free_from_up():
        fill_cell()
for i in range(6):
    if free_from_right():
        fill_cell()
        move_down()
    else:
        move_down()
for i in range(1):
    if free_from_right():
        fill_cell()
for i in range(12):
    if free_from_down():
        fill_cell()
        move_left()
    else:
        move_left()
for i in range(1):
    if free_from_down():
        fill_cell()
for i in range(6):
    if free_from_left():
        fill_cell()
        move_up()
    else:
        move_up()
for i in range(1):
    if free_from_left():
        fill_cell()