dustking

i found the ans in 30 mins but dont know correct or not?( t) p- L: D6 U) V" t
ans is too long! but concepts are something like that:TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。/ U$ @& v1 G, U0 V; A
seprate 4 groups 3 balls in one group!
5 V/ g& y4 x% c" a! k  Ktvb now,tvbnow,bttvbthe 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!tvb now,tvbnow,bttvb5 S& B* E7 y: B/ V
the last part is 1ball vs 1ball! something like that