C3123121111113313121111331333133313223313331333131211113323233121   >>    C312312111111331312111133133313331322331333133313121111332323312   <<    C3123121111113313121111331333133313223313331333131211113323233123   >>      C3123121111113313121111331333133313223313331333131211113323233122   >>