C31231211113313121211113313331333133313331213331323133313232333131   >>    C3123121111331312121111331333133313331333121333132313331323233313   <<    C31231211113313121211113313331333133313331213331323133313232333133   >>      C31231211113313121211113313331333133313331213331323133313232333132   >>