C312312111133131212111133133313331333133312133313232233313233311   >>    C31231211113313121211113313331333133313331213331323223331323331   <<    C312312111133131212111133133313331333133312133313232233313233313   >>      C312312111133131212111133133313331333133312133313232233313233312   >>