import turtle

t=turtle.Turtle()
s=turtle.Screen()
s.bgcolor("black")
t.pencolor("green")
a=0
b=0
t.speed(0)
t.penup()
t.goto(0,200)
t.pendown()

while True:
  t.forward(a)
  t.right(b)
  a+=3
  b+=1
  if b==210 :
     break
  t.hideturtle()
turtle.done()

import turtle

t=turtle.Turtle()
s=turtle.Screen()
s.bgcolor("black")
t.pencolor("green")
a=0
b=0
t.speed(0)
t.penup()
t.goto(0,200)
t.pendown()

while True:
  t.forward(a)
  t.right(b)
  a+=3
  b+=1
  if b==210 :
     break
  t.hideturtle()
turtle.done()
