Parametrice the curve of intersection of these surfaces (counterclockwise, viewpoint in positive z axis)

$\displaystyle z=3+x^2+y^2 , z=5-\sqrt{x^2+y^2}$

The only thing I did was equating $\displaystyle x^2+y^2=2-\sqrt{x^2+y^2}$. I have no clue of how to parametrize this.