|  | C131121333133313233213331333133313331333133313331333133313331333132313331323132313231311 
  >> |  | C13112133313331323321333133313331333133313331333133313331333133313231333132313231323131 
  << |  | C131121333133313233213331333133313331333133313331333133313331333132313331323132313231313 
  >> |  |