Which 2-in-1 laptop?

I'm looking for a 2-in-1 laptop or something like that, a touchscreen with a detachable keyboard and pen. If possible, around 12 inches tall. Would be ready to pay around 400 euro.

I would like to use it to draw, but also to write notes (both typed on the PC, as well as handwritten additions) or even small programming things.

Microsoft Surface? You can choose the best for you from the model range. Otherwise I would actually think of the iPad

First of all, thank you very much. I checked out Microsoft Surface a little, as I can't do much with Apple, but couldn't find anything in my price range.