# Author:  James Tam

# Version: May 28, 2022
# Learning objective: illustrating the difference between a list and the
# reference to a list.

num = 123
list1 = [1,2,3]
list2 = list1
print("Before")
print(list1)
print(list2)
print("\nAfter")
list1[0] = 888
list2[2] = 777
print(list1)
print(list2)