C312312111133131212111133133313331333133312133313331333132333132313331322221   >>    C31231211113313121211113313331333133313331213331333133313233313231333132222   <<    C312312111133131212111133133313331333133312133313331333132333132313331322223   >>      C312312111133131212111133133313331333133312133313331333132333132313331322222   >>