|  | C13112133313331323321333133313331333133313331333133313331333133313231333131133132313321 
  >> |  | C1311213331333132332133313331333133313331333133313331333133313331323133313113313231332 
  << |  | C13112133313331323321333133313331333133313331333133313331333133313231333131133132313323 
  >> |  |