I have the feeling there are missing instructions.. don't you? or something wrong in validation. doesn't make sense for a lvl 7 kata to point out 2 handle edge cases and the rest is passing. why 2 failed edge cases, 1234 and 098765, but it is ok for the other 25..., even the ones with same length... I made the test in python and it returns the correct value. Note that fails only in the part of 'Attempt' but when clicked 'Test' it passes all.

oh woah. i tried again and still have problems... 2 years later