You are needed to implement a phonebook. It consists of personal name and contact numbers. You
would like to allow following operations on the phonebook:
Add name and contact no. // name should be alphabetical order
Remove name and contact no.
Find name //if you could find name you must be able to get related contact
Find contact no //if you could find contact no you must be able to get concerned
Edit contact no.
Get total no of contacts in your list
Print the list
Move all contacts from one list to other list
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