[YOUKU_요우쿠] - for Chinese

▼ Direct(연출)


https://v.youku.com/v_show/id_XNDEwNjkxNzAyNA==.html?spm=a2h3j.8428770.3416059.1


▼ Explanation(해법)


https://v.youku.com/v_show/id_XNDEwNjk2NDQ1Mg==.html?spm=a2h3j.8428770.3416059.1