# Inspired by "Georgia's Spirals"

from turtle import *

bgcolor ('black')

for a_color, a_pensize, start_radius, stop_radius, radius_step in (
    ('red', 1, 82, 40, -6),       
    ('yellow', 1, 89, 40, -6), 

):
    pensize (a_pensize)
    color (a_color)
    for angle_index in range (20):
        for radius in range (start_radius, stop_radius, radius_step):
            circle (radius)
        right (95)
        
done ()