first, compare 6 and another 6. they must have difference. * k# o2 y( Z' [3 G- S7 _* `
second, divide those 6 heavier one into two, each has 3. u will find difference again.
, z% C. z6 Z, t9 |% x+ C5 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。third time, if u put 2 and they are equal, u will know the different one.+ C0 ?2 U* A0 }+ D
so easy.... |