Crona Structure using Python Turtle

 How to make Crona Structure using Python Turtle?

Source Code:-

import turtle

t=turtle.Turtle()

t.pencolor("green")

s=turtle.Screen()

s.bgcolor("black")

t.penup()

t.goto(0,200)

t.pendown()

a=0

b=0

t.speed(0)

while True:

    t.forward(a)

    t.right(b)

    a+=3

    b+=1

    if b==210:

        break

    turtle.hideturtle()

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