C3123223313331322121111331333133313331333121211113313311232223311   >>    C312322331333132212111133133313331333133312121111331331123222331   <<    C3123223313331322121111331333133313331333121211113313311232223313   >>      C3123223313331322121111331333133313331333121211113313311232223312   >>