i think its like this: 12乒乓球 oooooooooooo 天平 |公仔箱論壇6 \- [' h" Y7 M
1)6乒乓球 | 6乒乓球公仔箱論壇' Z8 W7 h: I! s3 d3 i0 m. j6 r$ Z
2) take the heavier side then 3乒乓球 | 3乒乓球
2 T0 T E8 g$ n7 n+ u8 j" ~% {3) take the heavier side then 1乒乓球(A) | 1乒乓球(B) with extra 1乒乓球(C)0 @4 K/ L, h* D( [+ w" s$ K
if A > B then A is the one+ P/ d# r- @' Z' R2 p, j) F% M6 B
if B > A then B is the one. A+ ]# Z7 ~9 R+ W2 i" T% V+ S: K s
if A = B then C is the one |