This is the most challenging kata ever. I always fall asleep

Hi could anyone explain what does left-upside and total upside mean?
How to understand this answer...

ah, you killed me

Cool, two good solutions for this problem. Thanks guys!

@Voile I made it even shorter (100 characters) ;-)

Very far from best, shortest solution ;-)

https://www.codewars.com/kata/reviews/5cfd374b9bde3400015aa0d3/groups/5d88ea1623ba730001d333aa

Oh, ZED always does stuff like that ;)
You can vote it as Clever of course.

I would rate this solution, but the "wicked" button is missing :)
You didn't obfuscate it by hand, did you?

Does this problem needs to be solved recursively

There is a simple idea that involves playing with the letter 'Z'.

Oh... good point. Thanks. I had overseen that :)
Back to work.

Gave up on the translation and deleted. You are welcome to add it.

There's still Int in the initial solution and there's still an error with Integer:

Falsifiable (after 1 test): 
expected: 195949901
 but got: 309383382
2945
"ZRBAGZWFBCYSJLTHVNLURPRXDDUVAUQUFQAXJIMCVNL"