Write Python program to perform following operations on Set:
Practical Significance
A set is an unordered collection of items. Every element is unique (no duplicates) and
must be immutable (which cannot be changed). A set is created by placing all the
items (elements) inside curly braces {}, separated by comma or by using the built-in
function set(). It can have any number of items and they may be of different types
(integer, float, tuple, string etc.). This practical will make students to work on Set data
structure supported in Python.