|  | C312312111133131212111133133313231333133313331333131211111133132313331333133311211321 
  >> |  | C31231211113313121211113313331323133313331333133313121111113313231333133313331121132 
  << |  | C312312111133131212111133133313231333133313331333131211111133132313331333133311211323 
  >> |  |