text: import turtle
  import math
  import time
  import threading
  from multiprocessing import Process
  
  
  def archimedian_turtle(some_turtle, step, nloops, diff=10):
      for _ in range(nloops):
          for i in range(3):
              some_turtle.forward(step)
              some_turtle.right(90)
          some_turtle.forward(step + diff)
          turn_angle = 180 - (math.atan(step / diff) * (180 / math.pi))
          some_turtle.right(turn_angle)
          step += diff
  
  def rev_turtle(some_turtle, step, nloops, diff=10):
      some_turtle.forward(step)
      for _ in range(nloops):
          for i in range(3):
              some_turtle.backward(step)
              some_turtle.left(90)
          some_turtle.backward(step + diff)
          turn_angle = 180 + (math.atan(step / diff) * (180 / math.pi))
          some_turtle.right(turn_angle)
          step += diff
  
  def make_art():
      window = turtle.Screen()
      # opens a screen
      window.bgcolor("red")
      # sets background color of screen to "red"
      jimmy = turtle.Turtle()
      jimmy.shape('turtle')
      jimmy.color('yellow')
      jimmy.speed(400)
  
      tim = turtle.Turtle()
      tim.shape('turtle')
      tim.color('blue')
      tim.speed(400)
  
      archimedian_turtle(jimmy, step=40, nloops=250, diff=5)
      rev_turtle(tim, step=40, nloops=250, diff=5)
      window.exitonclick()
      
  make_art()
  