first, compare 6 and another 6. they must have difference. ) y- Z4 @4 f$ G0 n
second, divide those 6 heavier one into two, each has 3. u will find difference again.TVBNOW 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。; S' \ D B) j
third time, if u put 2 and they are equal, u will know the different one.TVBNOW 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。# u$ ^% ^7 k+ @1 C- R
so easy.... |