first, compare 6 and another 6. they must have difference.
; p5 F- W* C* m/ u. @tvb now,tvbnow,bttvbsecond, divide those 6 heavier one into two, each has 3. u will find difference again.公仔箱論壇1 _/ _( Z0 H) ?2 Z7 k
third time, if u put 2 and they are equal, u will know the different one.
; G- B8 q. g/ A pso easy.... |