|  | C1111233131211111211113313331333133313232313331333133313331311331333133323133313331311331323131111 
  >> |  | C111123313121111121111331333133313331323231333133313331333131133133313332313331333131133132313111 
  << |  | C1111233131211111211113313331333133313232313331333133313331311331333133323133313331311331323131113 
  >> |  |