Write a Python program that uses a single while loop to create a list containing $40$ boxes. $20$ of the boxes are arranged in a circle in the xz plane and the other $20$ arranged in a circle in the yz plane. Use append to add each box to the list as it is created. After you have the boxes, use a 'for loop' to loop through the list of boxes, changing the color of each box to magenta. Use a rate of two so you can see the boxes change one by one. $"$