C312312111133131212111133133313331333133312133313331333121111113313132233131   >>    C31231211113313121211113313331333133313331213331333133312111111331313223313   <<    C312312111133131212111133133313331333133312133313331333121111113313132233133   >>      C312312111133131212111133133313331333133312133313331333121111113313132233132   >>