|  | C131121333133313233213331333133313331333133313331333133313331333131211111333133313222212321 
  >> |  | C13112133313331323321333133313331333133313331333133313331333133313121111133313331322221232 
  << |  | C131121333133313233213331333133313331333133313331333133313331333131211111333133313222212323 
  >> |  |