first, compare 6 and another 6. they must have difference.
2 ^* U9 K- |) @- |$ @6 jsecond, divide those 6 heavier one into two, each has 3. u will find difference again.
2 N3 ?2 j5 R5 M( d+ Stvb now,tvbnow,bttvbthird time, if u put 2 and they are equal, u will know the different one.
- @8 V) ^6 {7 ^tvb now,tvbnow,bttvbso easy.... |