|  | C312312111111331312111133133313231333133313112331333133112111112111133133313331311331322111 
  >> |  | C31231211111133131211113313331323133313331311233133313311211111211113313331333131133132211 
  << |  | C312312111111331312111133133313231333133313112331333133112111112111133133313331311331322113 
  >> |  |