C312312111133131212111133133313331333133312133313331333112322112111   >>    C31231211113313121211113313331333133313331213331333133311232211211   <<    C312312111133131212111133133313331333133312133313331333112322112113   >>      C312312111133131212111133133313331333133312133313331333112322112112   >>