C31232233133313221211113313331333133313331212111133121111133221232311   >>    C3123223313331322121111331333133313331333121211113312111113322123231   <<    C31232233133313221211113313331333133313331212111133121111133221232313   >>      C31232233133313221211113313331333133313331212111133121111133221232312   >>