Well for Christmas I got a new electro-acoustic guitar (a Yamaha FX370C). However, unsurprisingly the strings which came with it are pretty crap, so I'm looking to change them.

I'd like to keep the same gauge, so I was just wondering which gauge strings usually come as standard on new acoustic guitars.

Thanks in advance
My Yamaha came with 10's. I emailed Yamaha and they said they ship all guitars with 10's.