Multiple URL Rewrite Question

Say our domain is microsoft.com. I need a rewrite URL that redirects as perminent found all requests tohttps://www.microsoft.com. Notice the HTTPS. All requests need to redirect to HTTPS. So the following:

http://microsoft.com > https://www.microsoft.com
http://www.microsoft.com >https://www.microsoft.com
https://microsoft.com >https://www.microsoft.com

Basically all 3 variations need to point to https://www.microsoft.com. How do I do that efficiently? Right now I have 2 rewrite rules one to handle http and one for HTTPS but it's not efficient.

Thanks!