"Three Mr. Dudus live in the same building. This country is going to award a once-in-decades prize, and the three Mr. Dudus become the candidates of the prize. As people can't decide, a postman brings an unusual message -- there is a sum of money at the post office sent from abroad to Mr. Dudu, but which Mr. Dudu does it belong to exactly? From this incident, the king knows which Mr. Dudu deserves the prize."--Amazon.com.