C31232233133313221211113313331333133313331212111112111111313121   >>    C3123223313331322121111331333133313331333121211111211111131312   <<    C31232233133313221211113313331333133313331212111112111111313123   >>      C31232233133313221211113313331333133313331212111112111111313122   >>