$($b$)$ Write a program to input your friends' names and their Phone Numbers and store them in the dictionary as the key$-$value pair. Perform the following operations on the dictionary:

i$)$ Display the name and phone number of all your friends

$(3)$

ii$)$ Add a new key$-$value pair in this dietionary and display the modified dictionary

iii$)$ Delete a particular friend from the dictionary

iv$)$ Modify the phone number of an existing friend

v$)$ Check if a friend is present in the dictionary or not

vi$)$ Display the dictionary in sorted order of names