import turtle

def draw_square(t, size):
    for i in range(4):
        t.forward(size)
        t.right(90)

# draw_square(turtle, 100)

def draw_recursive_stairs(t, size, steps):
    if steps == 0:
        return
    t.left(90)
    t.forward(size)
    t.right(90)
    t.forward(size)
    draw_recursive_stairs(t, size, steps - 1)

# draw_recursive_stairs(turtle, 20, 5)

def draw_recursive_tree(t, size, größe):
    if größe == 0:
        return
    t.forward(size)
    t.left(30)
    draw_recursive_tree(t, size * 0.7, größe - 1)
    t.right(60)
    draw_recursive_tree(t, size * 0.7, größe - 1)
    t.left(30)
    t.backward(size)
turtle.left(90)
draw_recursive_tree(turtle, 100, 5)