PathGeometry for Minimize button

I have a window which needs custom Maximize and Minimize Icons.

Icons are :    

For maximize icon, I already have Path.Data in my code as follows :

Data="M0,0L9,0L9,1L0,1L0,9L9,9L9,0"

I wanted path for Minimize icon. I am unable to draw it in expression blend.

please help me out.

Dheeraj