C31231211113313121211113313331333133313331213331333133322331323113211111   >>    C3123121111331312121111331333133313331333121333133313332233132311321111   <<    C31231211113313121211113313331333133313331213331333133322331323113211113   >>      C31231211113313121211113313331333133313331213331333133322331323113211112   >>