first, compare 6 and another 6. they must have difference.
, A3 k9 f( ~+ d; I4 T公仔箱論壇second, divide those 6 heavier one into two, each has 3. u will find difference again.tvb now,tvbnow,bttvb8 [) v6 j3 x# ]+ N
third time, if u put 2 and they are equal, u will know the different one.tvb now,tvbnow,bttvb$ u& s" m, M5 T i8 @) \
so easy.... |