i find one solution that is similar
4 ~. \' j- c# H9 R9 G7 Z. n8 mtvb 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....tvb now,tvbnow,bttvb0 U' U a: S; e, @& Q( I" |
maybe there is a better one, let me see sin |