|  | C131121333133313233213331333133313331333133313331333133313331333131211111333133313132313221 
  >> |  | C13112133313331323321333133313331333133313331333133313331333133313121111133313331313231322 
  << |  | C131121333133313233213331333133313331333133313331333133313331333131211111333133313132313223 
  >> |  |