|  | C312312111133131212111133133313331323133313233121111331311331333133313331333133313223313232212321 
  >> |  | C31231211113313121211113313331333132313331323312111133131133133313331333133313331322331323221232 
  << |  | C312312111133131212111133133313331323133313233121111331311331333133313331333133313223313232212323 
  >> |  |