This is an exercise on Python set.
First question is on ADD and update method.
And you need to first create an empty set and then add elements of different data types to the set so
you can add numbers strings lists etc. and you can use the ADD and update methods to add elements to
the empty set and you also need to pay attention to the difference between the ADD and update methods.
Second question is also on set methods.
Consider these two sets set underscore land and set underscored water and you need to find out the unique
elements from both the set.
You also need to find out the elements and set land that are not existing in set water.
So you can use the different methods that were discussed in class to answer this question so you can
go ahead and answer these two questions.
And good luck.