|  | C13112133313331323321333133313331333133313331333133313331333133313121111121111132313131 
  >> |  | C1311213331333132332133313331333133313331333133313331333133313331312111112111113231313 
  << |  | C13112133313331323321333133313331333133313331333133313331333133313121111121111132313133 
  >> |  |