first, compare 6 and another 6. they must have difference.
- p3 L% d. I2 m j4 f* }' ?tvb now,tvbnow,bttvbsecond, divide those 6 heavier one into two, each has 3. u will find difference again.公仔箱論壇0 v" }& p/ f* l7 G* b
third time, if u put 2 and they are equal, u will know the different one.www3.tvboxnow.com) [" h3 n5 D T% [9 i. A: B( \: r
so easy.... |