|  | C1111233131211111211113313231333133313331323331333131211113313331333131333133313331333132233132223221 
  >> |  | C111123313121111121111331323133313331333132333133313121111331333133313133313331333133313223313222322 
  << |  | C1111233131211111211113313231333133313331323331333131211113313331333131333133313331333132233132223223 
  >> |  |