|  | C1111233131211111211113313331333133313331312211111133133313331333132313331333133313331313112121 
  >> |  | C111123313121111121111331333133313331333131221111113313331333133313231333133313331333131311212 
  << |  | C1111233131211111211113313331333133313331312211111133133313331333132313331333133313331313112123 
  >> |  |