|  | C1111233131211111211113313331333133313331312331333133313121111331333133112111133133313231131321 
  >> |  | C111123313121111121111331333133313331333131233133313331312111133133313311211113313331323113132 
  << |  | C1111233131211111211113313331333133313331312331333133313121111331333133112111133133313231131323 
  >> |  |