스페셜초이스카드(Special choice card) - 해법

[youku for Chinese]

▼ Performance(연출)

https://v.youku.com/v_show/id_XNDQ0ODgxNTA1Ng==.html?spm=a2h3j.8428770.3416059.1

▼ Explanation(해법)

https://v.youku.com/v_show/id_XNDQ0ODgxNjA0NA==.html?spm=a2h3j.8428770.3416059.1