text: # my solution to
  # https://www.codewars.com/kata/find-the-missing-letter/python
  
  def find_missing_letter(chars):
      prev = chars[0]
      print(prev)
      print(ord(prev))
      for letter in chars[1:]:
          print(letter)
          print(ord(letter))
          if ord(letter) != ord(prev) + 1:
              return chr(ord(letter)-1)
          prev = letter
  