|  | C31231211111133131211113313331333133112111133133313331323131133133313331333133112111111121 
  >> |  | C3123121111113313121111331333133313311211113313331333132313113313331333133313311211111112 
  << |  | C31231211111133131211113313331333133112111133133313331323131133133313331333133112111111123 
  >> |  |