C3123223313331322121111331333133313331333121211113313233213331111   >>    C312322331333132212111133133313331333133312121111331323321333111   <<    C3123223313331322121111331333133313331333121211113313233213331113   >>      C3123223313331322121111331333133313331333121211113313233213331112   >>