Add status messages to all functions to improve readability

[Verito21]

This is my second contribution to the open-source and I hope I have not committed any mistakes in this project.

[674019130]

Good idea!
You can format your string, like adding space after punctuation, to obey the code specification.
and as possible as you can, do not change the structure of main function, including the return value and function signature.

Good luck!