first, compare 6 and another 6. they must have difference. tvb now,tvbnow,bttvb; E- c1 ~+ s& H p' x. J
second, divide those 6 heavier one into two, each has 3. u will find difference again.
7 T( P3 E' u O公仔箱論壇third time, if u put 2 and they are equal, u will know the different one.公仔箱論壇+ _9 [2 n$ e& t
so easy.... |