Question about long-term and short-term sales

Let's say for example I own 100 shares of Apple and I bought them 10 years ago. And then I bought two more shares of Apple yesterday. In a month from now I sell two shares. Or five, whatever. Do the shares that I'm selling count as short-term or long-term gains considering I've had shares for years, and that I've recently bought more shares.

Hope this is clear enough