C31232233133313221211113313331333133313331212111133133313111131233133311211   >>    C3123223313331322121111331333133313331333121211113313331311113123313331121   <<    C31232233133313221211113313331333133313331212111133133313111131233133311213   >>      C31232233133313221211113313331333133313331212111133133313111131233133311212   >>