1. 1st divide to half take the heavier out 0 d$ |# H' s0 [& ^: ?( yTVBNOW 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。2. 2nd take 4 balls out of 5 divide 2 groups to get the heavier out. (if is equal thn the remain is the one u looking for)公仔箱論壇! z0 c4 M2 P& z0 k# m, w- U3 y
3. Same method if is not equal on 2nd try.