i find one solution that is similartvb now,tvbnow,bttvb. D% I! Y+ p; H( a7 k4 S7 S' t$ @
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....
; A+ p1 }- i4 U% w) fmaybe there is a better one, let me see sin |