stupid818

first, compare 6 and another 6. they must have difference.
8 O" c- c: O5 g公仔箱論壇second, divide those 6 heavier one into two, each has 3. u will find difference again.
) d0 `# Q: `! Q+ z" l& a. Xthird time, if u put 2 and they are equal, u will know the different one.公仔箱論壇* r0 @) n- j, `  I: l, n
so easy....