i find one solution that is similar ( Z+ j2 k* c3 q5 `8 U+ i: Wbut i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left....' R$ H1 L* E. a- x: \
maybe there is a better one, let me see sin
actually this question always have someone asked, the calculation is very complicated, should give a no. of each ball, and first weight it in 6-6, and .... forgot...