|  | C1111233131211111211113313331333133313232321333133313331211113313331312111133133313113313332212121 
  >> |  | C111123313121111121111331333133313331323232133313331333121111331333131211113313331311331333221212 
  << |  | C1111233131211111211113313331333133313232321333133313331211113313331312111133133313113313332212123 
  >> |  |