Ma Yun's Problem of Recruiting Talents and Recruiting Talents

Confused question, the original money spent is not equal to the remaining money. You can try. You have 50 yuan money in your hand, and then you spend one yuan at a time. How much money do you think you have left after ten times? 445 yuan. So this is really meaningless in terms of algorithm, but it seems to be implied, for example, the more we invest in a limited time, the more we get, and so on.