LYFT IPO was issued at $$72/$share$.$ Before the IPO, Lyft had $240$ million class A shares outstanding and wanted to issue additional $30$ million class A shares. On top of that, Lyft gave its underwriters options to purchase another $5$ million shares at $$72$ each. When Lyft stock price fell below the IPO price of $$72,$ to support the stock price, up to how many shares the underwriters could buy from the open market without losing money?