|  | C131121333133313233213331333133313331333133313331333133313121111331323133313133313133121 
  >> |  | C13112133313331323321333133313331333133313331333133313331312111133132313331313331313312 
  << |  | C131121333133313233213331333133313331333133313331333133313121111331323133313133313133123 
  >> |  |