For this homework, you will be working on string manipulation in Python. Your task is to create a program that stores accounts as usernames and passwords within a single string. The program encrypts passwords before storing them. The program will consist of various functions for retrieving passwords for a given username, verifying the correct passwords, and adding accounts.

You will get a starter file with functions and some variables $($ALPHABET$,$ ENCRYPTION$\_$KEY, and users$\_$passes$)$ initialized. In the users$\_$passes string, there is a $$#$$ between user names and passwords; there is a $*$ between every username#password pair.