Afternoon,
Apologies for the sloppy first draft. Improvements have been made.
I have stopped the use of operator along with module imports so math and numpy modules cannot be used.
I have added sample tests.
I have added many longer tests and set a character limit of 5,000 to stop hardcoding answers (my answer is under 950 characters).
Can this be put into Beta again please?

Ok, thank you. Will work on it before publishing again.

This is my first kata, so feel free to critisize, I know more test cases are needed for a start.

How do I stop people using the mul operator in this kata?
If his is not possible, the kata goes from a tricky kata to an 8th Kyu kata.