|  | C1311213331333132332133313331333133313331333133313331333133313331333131211113311231221 
  >> |  | C131121333133313233213331333133313331333133313331333133313331333133313121111331123122 
  << |  | C1311213331333132332133313331333133313331333133313331333133313331333131211113311231223 
  >> |  |