C111123313121111121111331333133313331333133313121111331331121111331322121221   >>    C11112331312111112111133133313331333133313331312111133133112111133132212122   <<    C111123313121111121111331333133313331333133313121111331331121111331322121223   >>      C111123313121111121111331333133313331333133313121111331331121111331322121222   >>