#!python
# -*- mode: python; Encoding: utf-8; coding: utf-8 -*-
# Last updated: <2021/06/03 06:33:57 +0900>
"""
Turtle Graphics.

Windows10 x64 20H2 + Python 3.9.5 64bit
"""

import turtle

t = turtle.Turtle()

t.shape('turtle')
t.pencolor('green')
t.speed(10)

for j in range(36):
    for i in range(4):
        t.forward(200)
        t.left(360/4)
    t.left(10)

turtle.done()