i find one solution that is similar) [1 g) B7 h! K7 Z7 e
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.... ' q* S1 o" k/ H% R# z& i3 jmaybe 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...