6 at a side for first
% m z& B7 I) ]* b5 Rtvb now,tvbnow,bttvbwhich 1 heavie5.39.217.76' U/ m$ R. F: k
then 3 by the side
% |+ J- E; A) e9 m& d( dtvb now,tvbnow,bttvbu know which 1 heavie公仔箱論壇# T6 y4 P) ~! v+ }) b9 A" \& ?
left 3 pick 20 L7 J7 O$ t/ T# |0 S+ a/ s) U
if balance then the third 1 is the asnwer if not balance the 1 u can guess la...|tvb now,tvbnow,bttvb# o2 k( v ?5 G! a- O2 }
its took me 2 minit to fugure it out |