|  | C1111233131211111211113313331333133313232321333133313331211113313331333121111331323222321 
  >> |  | C111123313121111121111331333133313331323232133313331333121111331333133312111133132322232 
  << |  | C1111233131211111211113313331333133313232321333133313331211113313331333121111331323222323 
  >> |  |