## June 2017 Fiendish Function

The Fiendish Function posed during June 2017 had the following sample guesses and replies:

- 1
- 4
- 2
- 16
- 3
- 256
- 4
- 66
- 5
- 12
- 10
- 8

The rule was: "Add 2 to the power of the number's digits together, then add 2 to the power of the digits together".

Suppose the guess was 15:

- Take the number's digits, giving 1, 5
- Take 2 to the power of each digit, giving 2, 32
- Add these together, giving 34.
- Take the number's digits, giving 3, 4
- Take 2 to the power of each digit, giving 8, 16
- Add these together, giving 24.

So the result is 24.

## Earlier answers

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