def fall():
    global turtles_list, top_y, x_pos, turtle, count
    for my_clone in turtles_list:
        x1 = my_clone.pos()[0]
        y1 = my_clone.pos()[1]
        if (y1 > turtle.pos()[1]):
            y1 = (y1 - 25)
            my_clone.goto(x1, y1)
    count += 1
    print(count)
    if ((count % 100) == 0):
        num_box = (count // 100)
        for i in range(num_box):
            create_box()
    turtle.ontimer(fall, TIME_STEP)
def fall():
    global turtles_list, top_y, x_pos, turtle, count
    for my_clone in turtles_list:
        x1 = my_clone.pos()[0]
        y1 = my_clone.pos()[1]
        if (y1 > turtle.pos()[1]):
            y1 = (y1 - 25)
            my_clone.goto(x1, y1)
    count += 1
    print(count)
    if ((count % 100) == 0):
        num_box = (count // 100)
        for i in range(num_box):
            create_box()
    turtle.ontimer(fall, TIME_STEP)