User turns:
user: In my existing folder called 'Lectures', I'd like to set up a new file called 'Notes2023.txt'.
user: Inside 'Notes2023.txt', I shall jot down some pivotal reminders: 'Study diligently, practice programming, master algorithms.'
user: Ascertain for me how many characters of text remain in this alphabetically sorted version of 'Notes2023.txt'.

Involved APIs: GorillaFileSystem
MathAPI
Ground-truth function call path:
GorillaFileSystem.cd
GorillaFileSystem.touch
GorillaFileSystem.echo
GorillaFileSystem.cat
GorillaFileSystem.sort
GorillaFileSystem.wc
MathAPI.standard_deviation