Question: Write a program that keeps names and email addresses in a Dictionary as key-value pairs. The program should let the user look up a

Write a program that keeps names and email addresses in a Dictionary as key-value pairs. The program should let the user look up a person's email address, add a new name and email address, change an existing email address, and delete an existing name and email address. The program should save the contents of the Dictionary to a file when the user exits the program. Each time the program starts, it should retrieve the information from the file and restore the Dictionary.

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