|  | C13112133313331323321333133313331333133313331333133313331333133313331311211331322131121 
  >> |  | C1311213331333132332133313331333133313331333133313331333133313331333131121133132213112 
  << |  | C13112133313331323321333133313331333133313331333133313331333133313331311211331322131123 
  >> |  |