Have mouse register screen in quadrants

So I’m trying to cut the screen in quadrants from corner to corner according to the mouse position. As of now I have the top left to the bottom right by getting the mouse position X and comparing it the the mouse position Y. What I need help with is getting the top right and the bottom left of the screen. Any help is highly appreciated. This is a screenshot of the blueprint that is measuring the screen diagonally.


Not sure if this is the best way to explain what you need to compare but I hope this helps.

Top Left = < X/2 : < Y/2
Top Right = > X/2 : < Y/2
Bottom Right = > X/2 : > Y/2
Bottom Left = < X/2 : > Y/2