C31231211113313121211113313331333133313331213331323223311211323221   >>    C3123121111331312121111331333133313331333121333132322331121132322   <<    C31231211113313121211113313331333133313331213331323223311211323223   >>      C31231211113313121211113313331333133313331213331323223311211323222   >>