This is just a warning. It doesn't stop you from passing the kata, but your code is likely wrong.

OP solved it, closing

It's hard to have test cases because it depends on random values.
just skip the test code step and try the attempt option directly

Fixed.

The test cases are fine, closing.

Try to tackle the bit representation of the numbers and find a pattern that tells you how the strongness of the number increases or decreases.

you can search it online search ascii table so that in your next katas you can utilize this knowledge to manipulate chars and strings

joking hahahah once you convert a char or a letter to a integer and the likes they are converted to their ascii value

magic po