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1. 1st divide to half take the heavier out
! ?- M6 X, j' G6 ?5 `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)
6 @* o( c" B) X& U6 r4 XTVBNOW 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。3. Same method if is not equal on 2nd try.
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