Сделать рисунок turtle

import turtle
import math
 
s = 50
angle = 90
half_angle = 45
 
def move_pen(x, y):
    turtle.penup()
    turtle.goto(x, y)
    turtle.pendown()
 
move_pen(-s, s)
for _ in range(4):
    turtle.forward(2 * s)
    turtle.right(angle)
 
move_pen(0, s)
turtle.right(half_angle)
for _ in range(4):
    turtle.forward(s * math.sqrt(2))
    turtle.right(angle)
 
step = s // 8
 
for x in range(1, 8):
    move_pen(step * x, s)
    turtle.forward(math.sqrt((s - step * x) ** 2 + (s - step * x) ** 2))
 
move_pen(s, 0)
turtle.right(angle)
for x in range(1, 8):
    move_pen(s, -step * x)
    turtle.forward(math.sqrt((s - step * x) ** 2 + (s - step * x) ** 2))
 
move_pen(0, -s)
step = s // 15
for x in range(1, 15):
    move_pen(-step * x, -s + step * x)
    if x <= 8:
        turtle.forward(math.sqrt((step * x) ** 2 + (step * x) ** 2))
    else:
        turtle.forward(math.sqrt((step * (17 - x)) ** 2 + (step * (17 - x)) ** 2))
 
move_pen(-s, 0)
turtle.right(angle)
for x in range(2, 16):
    move_pen(-s + step * x, step * x)
    if x <= 8:
        turtle.forward(math.sqrt((step * x) ** 2 + (step * x) ** 2))
    else:
        turtle.forward(math.sqrt((step * (17 - x)) ** 2 + (step * (17 - x)) ** 2))
 
turtle.exitonclick()