|  | C1111233131211111211113313331333133313232313331333131333131211113313331333133313231333133313233211211 
  >> |  | C111123313121111121111331333133313331323231333133313133313121111331333133313331323133313331323321121 
  << |  | C1111233131211111211113313331333133313232313331333131333131211113313331333133313231333133313233211213 
  >> |  |