|  | C1111233131211111211113313331333133313331122212111112111112111133133313331311331333133313232212311 
  >> |  | C111123313121111121111331333133313331333112221211111211111211113313331333131133133313331323221231 
  << |  | C1111233131211111211113313331333133313331122212111112111112111133133313331311331333133313232212313 
  >> |  |