first, compare 6 and another 6. they must have difference.
. {3 f% F8 J0 G8 `5.39.217.76second, divide those 6 heavier one into two, each has 3. u will find difference again.
; b4 Y6 T. o' P8 [ ]5.39.217.76third time, if u put 2 and they are equal, u will know the different one.
' |' Y- o, O6 o6 J5.39.217.76so easy.... |