Help how do I flip the screen on my laptop?

[Ihatebonfires]

Hi my child pressed something on my laptop and fliped the screen sideways. How do I put it the right way back please?

Google it. It is a sequence of keys but can't remember which.

And it was my cat that did it to mine!

Control alt and the up arrow works on my laptop

That has worked for me, thank you so much xx

Nb I shall write it down so I know for next time! Bloodly kids!!!!!!!