Episode 29 7 kyu https://www.codewars.com/kata/playing-with-sets-sup-slash-sub/train/javascript 6 kyu https://www.codewars.com/kata/the-supermarket-queue/train/javascript https://www.codewars.com/kata/count-characters-in-your-string/train/javascript https://www.codewars.com/kata/weird-string-case/train/javascript