|  | C131121333133313233213331333133313331333133313331333133313331333132313331311331311121 
  >> |  | C13112133313331323321333133313331333133313331333133313331333133313231333131133131112 
  << |  | C131121333133313233213331333133313331333133313331333133313331333132313331311331311123 
  >> |  |