C3123223313331322121111331333133313331333121211113312111113231333221211   >>    C312322331333132212111133133313331333133312121111331211111323133322121   <<    C3123223313331322121111331333133313331333121211113312111113231333221213   >>      C3123223313331322121111331333133313331333121211113312111113231333221212   >>