|  | C131121333133313233213331333133313331333133313331333133313331311331333133313231313231 
  >> |  | C13112133313331323321333133313331333133313331333133313331333131133133313331323131323 
  << |  | C131121333133313233213331333133313331333133313331333133313331311331333133313231313233 
  >> |  |