What should I do for a short term stock game?

I’m in a financial literacy class and we have a stock game that ends in may. Obviously can’t just do safe long term investments if I want to win so what’s your advice? You have 100,000 dollars and can borrow 100,000 on margin, you can buy or you can short but that’s all. Any strategies that would get me the most money in the most amount of time? Since it’s just a game risk isn’t a huge factor and there is a time limit so I can’t just DCA or invest in etfs like in real life thanks!