|  | C1111233131211111211113313331333133313232313331333133313131211113313331333133313133313231333132212121 
  >> |  | C111123313121111121111331333133313331323231333133313331313121111331333133313331313331323133313221212 
  << |  | C1111233131211111211113313331333133313232313331333133313131211113313331333133313133313231333132212123 
  >> |  |