|  | C1111233131211111211113313331323133313231333133313231331121111331333133313331323121 
  >> |  | C111123313121111121111331333132313331323133313331323133112111133133313331333132312 
  << |  | C1111233131211111211113313331323133313231333133313231331121111331333133313331323123 
  >> |  |