i find one solution that is similar* D9 X, m6 J) \4 k
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.... 9 \4 `$ ]* P/ ^$ F0 q# gmaybe 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...