|  | C1111233131211111211113313331333133313232313331333133313331311331333133313112331333132313122321 
  >> |  | C111123313121111121111331333133313331323231333133313331333131133133313331311233133313231312232 
  << |  | C1111233131211111211113313331333133313232313331333133313331311331333133313112331333132313122323 
  >> |  |