code: def get_subs(subs_file='subreddits.txt', blacklist_file='blacklist.txt') -> List[str]:
      
      # Get subs and blacklisted subs
      subsf = open(subs_file)
      blacklf = open(blacklist_file)
      subs = [b.lower().replace('\n','') for b in subsf.readlines()]
      blacklisted = [b.lower().replace('\n','') for b in blacklf.readlines()]
      subsf.close()
      blacklf.close()
  
      # Filter blacklisted
      subs_filtered = list(sorted(set(subs).difference(set(blacklisted))))
      return subs_filtered
docs: Get subs based on a file of subreddits and a file of blacklisted subreddits.
  
      :param subs_file: List of subreddits. Each sub in a new line.
      :param blacklist_file:  List of blacklisted subreddits. Each sub in a new line.
      :return: List of subreddits filtered with the blacklisted subs.
  
      **Example files**::
  
          sub0
          sub1
          sub2
          ...