At first glance, this problem looks like this, but the logic is chaotic and the concept has changed. The specific analysis is as follows:

In fact, if it is 490+490+ 10, it is a concept of stealing. What did you do with the money you borrowed from your parents? Did you buy shoes? Then the sum of the money for shoes and the money in your hand is 1000.

Then give out the remaining 30 points and return 65,438+00 to each of your parents, which means you owe each of your parents 490, which is 980. This 980 adds up to 10 in your hand and 10 in your shoe.