|  | C1111233131211111211113313331333133313232313331333133313331311331333132332111133133313331333313121 
  >> |  | C111123313121111121111331333133313331323231333133313331333131133133313233211113313331333133331312 
  << |  | C1111233131211111211113313331333133313232313331333133313331311331333132332111133133313331333313123 
  >> |  |