i find one solution that is similar
( V+ y% W- ` d) D( |1 o; y; X9 j5 vtvb now,tvbnow,bttvbbut i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left....
6 n' k5 x& p' k) t公仔箱論壇maybe there is a better one, let me see sin |