How to completely remove duplicate elements in 2 lists?

Question

Python

There are 2 lists, you need to create 3, which will contain elements that are not repeated in 1 and 2.
Example:

list_1 = ['1', '2', '3']
list_2 = ['1', '3', '4']
list_3 = ['2', '4']

Question - how to completely remove duplicate elements?

Answer 1

list_3 = set(list_1) ^ set(list_2)