C31231211113313121211113313331333133313331213331333133313332133322331   >>    C3123121111331312121111331333133313331333121333133313331333213332233   <<    C31231211113313121211113313331333133313331213331333133313332133322333   >>      C31231211113313121211113313331333133313331213331333133313332133322332   >>