first, compare 6 and another 6. they must have difference. tvb now,tvbnow,bttvb1 e2 M5 U% C2 Q+ K! Z$ x
second, divide those 6 heavier one into two, each has 3. u will find difference again.
; l t* O: F# U- Y5 E lthird time, if u put 2 and they are equal, u will know the different one.
1 c, f$ A6 C3 `* H& J9 ktvb now,tvbnow,bttvbso easy.... |