C3123223313331322121111331333133313331333121211113312111133221311   >>    C312322331333132212111133133313331333133312121111331211113322131   <<    C3123223313331322121111331333133313331333121211113312111133221313   >>      C3123223313331322121111331333133313331333121211113312111133221312   >>