wasape

i think its like this: 12乒乓球  oooooooooooo      天平 |
4 G$ k/ B) K% O! u1 N% I. H; B' o1)6乒乓球 | 6乒乓球
9 t: m6 E- R- n  C2) take the heavier side then  3乒乓球 | 3乒乓球
/ A6 Z2 }; k/ o5 r5.39.217.773) take the heavier side then  1乒乓球(A) | 1乒乓球(B)     with extra 1乒乓球(C)
2 q9 K) O. N8 rtvb now,tvbnow,bttvbif A > B then A is the one
5 c7 @0 ^8 O$ l7 b公仔箱論壇if B > A then B is the one
, o3 {* m1 M' g6 ?if A = B then C is the one