old_contents: """
  http://arxiv.org/pdf/1306.3888.pdf
  """
  from collections import Counter
  
  
  def MK10(corpus):
      bigrams = Counter()
      for i in xrange(len(corpus) - 1):
          bigrams[corpus[i:i+2]] += 1
      common, count = bigrams.most_common()[0]
  
  def SNPR(corpus):
      pass
  
  
  if __name__ == '__main__':
      MK10('aabbccddaabbccddbbccbbccaabbccccddccdd')
  
new_contents: """
  http://arxiv.org/pdf/1306.3888.pdf
  """
  from collections import Counter
  
  
  def MK10(corpus):
      corpus = '_'.join(corpus)
      bigrams = Counter()
      for i in xrange(0, len(corpus) - 1, 2):
          print corpus[i:i+4]
          bigrams[corpus[i:i+4]] += 1
      common, count = bigrams.most_common()[0]
      print common
  
  
  def SNPR(corpus):
      pass
  
  
  if __name__ == '__main__':
      demo = 'aabbccddaabbccddbbccbbccaabbccccddccdd'
      MK10(demo)
  
subject: Add delimiter?