## January 2018 Fiendish Function

The Fiendish Function posed during January 2018 had the following sample guesses and replies:

- 1
- 2
- 2
- 9
- 3
- 28
- 4
- 65
- 5
- 126
- 10
- 2

The rule was: "Add the cubes of the number's digits together, then add one".

Suppose the guess was 23:

- Take the number's digits, giving 2, 3
- Cube them, giving 8, 27
- Add these together, giving 35.
- Add one, giving 36.

So the result is 36.

## Earlier answers

Here are the answers to the Fiendish Functions posted in earlier months: