C312312111111331312111133133313331333121111331333132233132332311   >>    C31231211111133131211113313331333133312111133133313223313233231   <<    C312312111111331312111133133313331333121111331333132233132332313   >>      C312312111111331312111133133313331333121111331333132233132332312   >>