|  | C1111233131211111211113313331333133313232313331333133313331311331333133313133313331323221231 
  >> |  | C111123313121111121111331333133313331323231333133313331333131133133313331313331333132322123 
  << |  | C1111233131211111211113313331333133313232313331333133313331311331333133313133313331323221233 
  >> |  |