C31232233133313221211113313331333133313331212111112111133121111131121312331   >>    C3123223313331322121111331333133313331333121211111211113312111113112131233   <<    C31232233133313221211113313331333133313331212111112111133121111131121312333   >>      C31232233133313221211113313331333133313331212111112111133121111131121312332   >>