i find one solution that is similarwww2.tvboxnow.com# i; M+ n5 }9 A# Q3 w; \8 o# e& p
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....
, f2 G' q4 u# X0 w" y5 b: v/ g# Stvb now,tvbnow,bttvbmaybe there is a better one, let me see sin |