🍁Nine Ancient Obelisks

—Professor Lazerman! —a student jumped up, raising his hand. —Everything is clear with groups "A" and "B," but surely achieving success in group "C" isn't so simple either? For example, you probably won't be the only one to come up with such a clever strategy, which means you'll have to compete with other "C" groups, many of which have been dominating the market for years, right? And besides, you probably won't be able to start a business or switch to another one without initial capital — few manufacturers will agree to cooperate without a long-term wholesale contract, and it's not so easy to attract customers, and so on?