|  | C131121333133313233213331333133313331333133313331333133313113313331333132313331323132131 
  >> |  | C13112133313331323321333133313331333133313331333133313331311331333133313231333132313213 
  << |  | C131121333133313233213331333133313331333133313331333133313113313331333132313331323132133 
  >> |  |