|  | C1111233131211111211113313331333133313232313331333133313131211113313331333133313331211113313332122321 
  >> |  | C111123313121111121111331333133313331323231333133313331313121111331333133313331333121111331333212232 
  << |  | C1111233131211111211113313331333133313232313331333133313131211113313331333133313331211113313332122323 
  >> |  |