Lists in python represent ordered sets of elements with finite length.
In a list elements with same value can occur multiple times.
Lists are a type of mutable sequences in Python as any element can be added to or removed from a list.
As with any sequence, the elements in the lists are identified with an index ranging from 0 to length-1 of the
list. Slicing operations are supported in lists and they produce new lists or sequences
which are subsets of the original list.