i find one solution that is similartvb now,tvbnow,bttvb# S6 k' _; K. h. f' a
but i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left....5.39.217.77:8898$ p8 S. n, a# y3 l
maybe there is a better one, let me see sin |