C31232233133313221211113313331333133313331212111133121111332112322232311   >>    C3123223313331322121111331333133313331333121211113312111133211232223231   <<    C31232233133313221211113313331333133313331212111133121111332112322232313   >>      C31232233133313221211113313331333133313331212111133121111332112322232312   >>