nginx – Easy way to swap multiple servers with sequential names and IP addresses?

I have a bunch of tiny servers overwhelmed by HTTPS SSL overhead. I'd like to park it behind a NGINX reverse proxy that will do a bit of caching and TLS stuff.

The names go like this:
serverX.my.domain.com ==> 10.0.0.100 + X, where X is a 2-digit number

I know that I can create a separate one server Block for each of them in nginx.confbut several near-clone configurations do not appeal to me. Is there a smart way to do this in one? server Block?