$$ Familiarize yourself with creating and processing dictionary and set data structures in Python

$$ Familiarize yourself with their operations

Program:

Write a python program that do the following:

A$.$ Make the user enter countries and their capital:

a$.$ You implement a way to stop asking the user

B$.$ Create a dictionary:

a$.$ Countries are keys

i$.$ Handle duplicates keys if the user enter a duplicate key,

keep the $1$st value

b$.$ Capitals are values

C$.$ Display the dictionary

D$.$ Take all keys from dictionary and convert it to a list

a$.$ Reverse the key list

b$.$ Display the reversed list

E$.$ Takes all values from dictionary and make it into a set

a$.$ Display set

F$.$ Create a set with these items $($Riyadh$,$ Kuwait, Abu

Dhabi,Manama,Muscat,Doha$)$

a$.$ Display all the capitals that do not appear in this set