|  | C13112133313331323321333133313331333133313331333133313331333133313121111133313113311211 
  >> |  | C1311213331333132332133313331333133313331333133313331333133313331312111113331311331121 
  << |  | C13112133313331323321333133313331333133313331333133313331333133313121111133313113311213 
  >> |  |