|  | C1111233131211111211113313331333133313232313331333133313331311331333131211113313332212121 
  >> |  | C111123313121111121111331333133313331323231333133313331333131133133313121111331333221212 
  << |  | C1111233131211111211113313331333133313232313331333133313331311331333131211113313332212123 
  >> |  |