C3123223313331322121111331333133313331333121211113313232221233232311   >>    C312322331333132212111133133313331333133312121111331323222123323231   <<    C3123223313331322121111331333133313331333121211113313232221233232313   >>      C3123223313331322121111331333133313331333121211113313232221233232312   >>