|  | C312312111133131212111133133313331333133312133313113313113313331333133313331333133313331323221133131 
  >> |  | C31231211113313121211113313331333133313331213331311331311331333133313331333133313331333132322113313 
  << |  | C312312111133131212111133133313331333133312133313113313113313331333133313331333133313331323221133133 
  >> |  |