Different initial conditions for different parts in transient thermal simulation
 

Hello everyone
I am trying to run a thermal simulation to capture the temperature profile at the contact between 2 bodies. Attachment 92135

I would like to have different initial conditions for the bodies.
The attached picture is a section view of the geometry. The grey-colored part should be at 30degC and the blue, green, and orange parts to be at 57degC.

Once the initial conditions are set, I would like to run a transient thermal simulation to observe the temperate transfer without any boundary conditions.

Can someone please help how I can achieve this?

Please inform me if more setup details are needed.

Kind Regards