dustking

i found the ans in 30 mins but dont know correct or not?
, f/ ?) W  O" j* m, i4 Hans is too long! but concepts are something like that:
1 O2 K2 A7 s. Z: L2 _$ f) ~( F) Useprate 4 groups 3 balls in one group! 6 h  c* w' a- p" S) m3 k
the 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!
0 D) M1 {  ]/ g, t. fthe last part is 1ball vs 1ball! something like that