|  | C131121333133313233213331333133313331333133313331333133313331333131211111211113311211113311 
  >> |  | C13112133313331323321333133313331333133313331333133313331333133313121111121111331121111331 
  << |  | C131121333133313233213331333133313331333133313331333133313331333131211111211113311211113313 
  >> |  |