dustking

i found the ans in 30 mins but dont know correct or not?
1 H5 s& i2 W) I% a1 Q; Ptvb now,tvbnow,bttvbans is too long! but concepts are something like that:5.39.217.777 v/ }. v& _6 h1 i+ P% e6 n6 @
seprate 4 groups 3 balls in one group!
5 v8 p: v/ ^( q( K$ r/ D/ vthe important part is the 2nd times which need to find out the fake ball is heavier or lighter by use the normal ball that u find at the first time!公仔箱論壇& O% h; }3 \, z" A* T3 l
the last part is 1ball vs 1ball! something like that