The narrator wakes up in a hospital with no memory of how he got there. A doctor informs him that he slipped and fell, hitting his head, but his condition is good. While in the hospital, he meets a billionaire named Genrikh Robertovich Kuznetsov, who is also a patient. The narrator saves the billionaire's life by pressing a button on a machine that was beeping erratically. As a thank you, the billionaire gives the narrator a gold card with a value of 50 million, which he must spend within a week. The narrator buys houses, cars, and other gifts for his relatives and even a small private island. He also invests in stocks and buys a factory that produces air in cylinders, which he converts into a potato chip factory. With the help of the billionaire's assistant, he becomes a successful businessman and eventually becomes a billionaire himself. However, the billionaire is not happy with the narrator's success, as it has hurt his own business. The narrator reveals that he had been pretending to be a fool all along and had actually planned his success as a way to get revenge on the billionaire for his initial condescension.
Here are the key facts extracted from the text:
1. The narrator woke up in a hospital bed and didn't know how he got there.
2. A doctor told him he was brought to the hospital by ambulance after slipping and falling on the street.
3. The narrator was sharing a hospital room with an unconscious man.
4. The narrator pressed a button on a machine next to the unconscious man, which stopped a loud squeaking noise and seemed to stabilize the man's condition.
5. A doctor and an assistant came into the room and told the narrator he had just saved the man's life.
6. The man who was saved was billionaire Genrikh Robertovich Kuznetsov.
7. Genrikh Robertovich's assistant thanked the narrator and gave him a business card and a jar of rare caviar.
8. The narrator was contacted by Genrikh Robertovich, who invited him to meet in person.
9. Genrikh Robertovich gave the narrator a gold card and told him to spend 50 million on anything he wanted.
10. The narrator used the gold card to buy houses, cars, and other luxury items for himself and his relatives.
11. The narrator also bought a small private island and a factory that produced air in cylinders.
12. The narrator decided to convert the factory to produce potato chips instead of air.
13. The narrator became friends with Genrikh Robertovich's assistant, who helped him with his business ventures.
14. The narrator's business ventures were successful, and he eventually became a billionaire himself.
15. Genrikh Robertovich called the narrator and invited him to a meeting, where he revealed that he had been producing chips for a long time and that the narrator had inadvertently competed with him.
Note: Some of the facts may be humorous or exaggerated, but I've tried to extract the most straightforward and factual information from the text.