I was wondering that myself, it seems like it isn't ranked properly if that's the case.
The kata is based on a trick more so then actual programming, which seems to defeat the point of a code kata.

Ты душный, братик... Может ты банчишь мороженым на москварике?

You hacked it! 👏

Can someone explain this sorcery?

You are supposed to write yourself all the solutions

It has nothing to do with having to write everything from scratch.

oh man i never notice such obvious things :(

You are supposed to write yourself all the solutions, in real world you can and must use other framework/libraries/utilities wrote by others in order to not reinventing the wheel, but here, you should use just your skill in programming to come to a solution

This isnt cheating imo, he went out and found a bignum. Then used it in the code he wrote. Are we supposed to rewrite every library function we use?

It works only for lowerCase letters

No need to be bitter, johnahnz0rs.

because it's a stupid kata submitted by a loser.

Because the solution is easy.

NOTE! This kata can be more difficult than regular 8-kyu katas

Why it is an 8 kyu then?

Done :) Thanks for the suggestion.