My code passes for tests 1,2,3,4 and 6, but fails on test five. I believe my logic is correct and it doesn't make sense that it would pass all tests including 6, but only fail on 5. I'm confused...I don't know if I am allowed to post code here, so for the time being I won't.

Does it always fail on test 5 each time you submit it.

If you don't want to publicly post your code here, feel free to email it to me using the "contact" link at the bottom of the page and I can have look at it and try and work out what's going on.