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Problem A. (5 points) Anonymizing Emails

A common task for some web sites is that when someone is trying to verify information about their account, you show them some of their e-mail address, but not the entire thing because you dont want to give away information. Write a function anonymize(username, domain) that will help with this process.

The function will take two arguments, the e-mail username (the part before the @ character) and then the domain, (the rest, including the @ character.) Your function will return a string that is the first letter of the e-mail username, then 5 asterisk characters (regardless of the length of the username), then the last letter of the e-mail username, then the rest of the domain.

Hints:

• To determine the last index of a string, you can use the len function.

• Remember that you can concatenate two strings together using the + operator

Examples:

>>> anonymize("andy.exley", "@abc.com")

'a*****y@abc.com'

>>> anonymize("katherine_johnson", "@abc.org")

'k*****n@abc.org'