|  | C131121333133313233213331333133313331333133313331333133313121111121111331333132333132313211 
  >> |  | C13112133313331323321333133313331333133313331333133313331312111112111133133313233313231321 
  << |  | C131121333133313233213331333133313331333133313331333133313121111121111331333132333132313213 
  >> |  |