|  | C312312111111331312111133133313331312111112111133131133133313331312111133133313331323312121 
  >> |  | C31231211111133131211113313331333131211111211113313113313331333131211113313331333132331212 
  << |  | C312312111111331312111133133313331312111112111133131133133313331312111133133313331323312123 
  >> |  |