|  | C1111233131211111211113313331333133313331122212111112111112111133133313311211113313331311331322231311 
  >> |  | C111123313121111121111331333133313331333112221211111211111211113313331331121111331333131133132223131 
  << |  | C1111233131211111211113313331333133313331122212111112111112111133133313311211113313331311331322231313 
  >> |  |