C111123313121111121111331333133313331322121111331333133313331323223313123222311   >>    C11112331312111112111133133313331333132212111133133313331333132322331312322231   <<    C111123313121111121111331333133313331322121111331333133313331323223313123222313   >>      C111123313121111121111331333133313331322121111331333133313331323223313123222312   >>