easy, one minutes i solve the problem
7 z8 X- k9 a9 D( sdivide into half, mean 6/ 6
5 v M5 a3 l) B5 t' H. ~. @take the heavier 6 ping pong
9 D4 w8 e" |* K6 ^ U5 L2 v Adivide into 3/3, take the heavier 3
6 z! T/ [8 ^! G. {( B5 MTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。take the the other 3 that have the equal weight, switch each to measure, the most important things is labeling the ping pong so that we can recognize |