C3123223313331322121111331333133313331333121211113313331133132323231311   >>    C312322331333132212111133133313331333133312121111331333113313232323131   <<    C3123223313331322121111331333133313331333121211113313331133132323231313   >>      C3123223313331322121111331333133313331333121211113313331133132323231312   >>