Ask HN: Best typing training for symbols and numbers?

[icosa]

I type words very fast (90-110 WPM). But as a programmer, I also type many symbols and numbers. Most typing trainers teach how to type words. What is the best one that teaches how to type symbols and numbers?

[theChaparral]

I don't know if it's the best one, but momkeytype.com has an option where you can not only set it for different written languages, but it also has programming language options.