|  | C31231211111133131211113313331333132333133313121211113313121111133313331333133313331311331323132211 
  >> |  | C3123121111113313121111331333133313233313331312121111331312111113331333133313331333131133132313221 
  << |  | C31231211111133131211113313331333132333133313121211113313121111133313331333133313331311331323132213 
  >> |  |