i find one solution that is similar
, F* g9 E! Y; W1 W& twww2.tvboxnow.combut i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left....
" W, _6 z6 Z5 i/ |公仔箱論壇maybe there is a better one, let me see sin |