codefights arcade intro task 17
arrayChange https://
arrayChange https://
killKthBit https://
palindromeRearranging https://
isMAC48Address https://
fileNaming https://
add https://
chessKnight https://
differentSquares https://
2017 Javascript
areSimilar https://
areEquallyStrong https://
spiralNumbers https://
isLucky https://