first, compare 6 and another 6. they must have difference.
( L* }8 A4 m( [. M4 |second, divide those 6 heavier one into two, each has 3. u will find difference again.5.39.217.77:8898% A7 W, t7 ^2 x7 W, n2 @# d
third time, if u put 2 and they are equal, u will know the different one.
# b/ K; m% U, R* Z5 yso easy.... |