first, compare 6 and another 6. they must have difference. ! P' R" ?8 ^/ O8 ^( h5 C2 z' c
second, divide those 6 heavier one into two, each has 3. u will find difference again.5.39.217.760 w8 o+ s$ \& U/ Y5 L6 N, N
third time, if u put 2 and they are equal, u will know the different one., B3 q- g* I/ I+ {( T0 x& Q! s
so easy.... |