i find one solution that is similar5 Q* L$ h- u, c
but i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left.... 1 [3 r M. q/ p0 R9 M, ^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...