|  | C1111233131211111211113313331333133313232321333133313331333131133133313331313331333131211111323223231 
  >> |  | C111123313121111121111331333133313331323232133313331333133313113313331333131333133313121111132322323 
  << |  | C1111233131211111211113313331333133313232321333133313331333131133133313331313331333131211111323223233 
  >> |  |