first, compare 6 and another 6. they must have difference.
$ e! m* K5 k5 ?& y6 L5.39.217.76second, divide those 6 heavier one into two, each has 3. u will find difference again.) K$ |. a H% H* D% M' |, @- R) E
third time, if u put 2 and they are equal, u will know the different one.8 }0 j+ `, ^# B
so easy.... |