Maomao lives with his parents in the countryside. One day on the way to buy popsicles, he tripped and fell, and his money bag fell into a hole. A bearded old man appeared in the hole, holding two bags of coins in his hand and asked Maomao if they were the bags he lost. Maomao opened them and saw that the two bags of coins in the old man's hands were a bag of gold coins and a bag of silver coins, while his own was a bag of copper coins.
Maomao answered honestly, and the grandfather finally rewarded him with gold coins and silver coins.
Purpose: To be a good honest boy