|  | C31231211111133131211113313331323133313331311233133313331333131133131211113313331333132323131211 
  >> |  | C3123121111113313121111331333132313331333131123313331333133313113313121111331333133313232313121 
  << |  | C31231211111133131211113313331323133313331311233133313331333131133131211113313331333132323131213 
  >> |  |