Where can i buy a plug adaptor?

I got a laptop with european round type plug (no idea what their actual name is) that I want to use in Taiwan. Where can I get a plug adaptor in Hsinchu?

Don’t know about Hsinchu but this kind of everything stores have them for like NT$50. 五金百貨. Lots of them show up on Google maps. Maybe one right next door.

Problem solved. Thanks.