I think that this problem is to make 3 piles from 5 balls . because all boxes look same. alos, the number of ball is the way we can distinguish property of pile therefore, answer is according to
5,0,0 4,1,0 3,2,0 3,1,1 2,2,1
I think that this problem is to make 3 piles from 5 balls . because all boxes look same. alos, the number of ball is the way we can distinguish property of pile therefore, answer is according to
5,0,0 4,1,0 3,2,0 3,1,1 2,2,1