Finally, Niu Wa woke up. When he saw Qingsheng and Xiaoshi, he divided the fish into three parts, and finally there were eight left.

Explain that 8 is the amount of 2 in 3! Then the total amount of this triplet is 8/2*3= 12.

After a while, Qingsheng also woke up. He also divided the fish into three parts and took one.

Explain that this article 12 is the quantity of 2 in 3! Then the total amount of three copies is 12/2*3= 18.

Xiaoshi woke up, but he didn't wake them up when he saw that they were still sleeping. He divided the fish into three funds and took one.

Explain that this article 18 is the quantity of 2 out of 3! Then the total amount of this triplet is 18/2*3=27.

So we can know that everyone deserves 9 items on average.

In fact, Xiaoshi took 9 birthday celebrations, 6 bullfrogs and 4 frogs.

Therefore, three small stones should be given to Qingsheng and five to Niu Wa.