Extract Interior curves of trimmed surface with Grasshopper

Dear professionals,
please advise how interior curves of such Breps can be extracted with Grasshopper

Use Brep edges, Connect join curves to the Naked edges output(En),then connect the output from join curves to list item and extract the internal curves.
Hope this helps.
Mr A.

See attached as well

Brep_InnerOuterLoops_V1.3dm (778.7 KB) Brep_InnerOuterLoops_V1.gh (113.4 KB)

Thanks for your reply,
but I’m looking for an automation, not for a manual work in grass

Thank you for your reply !
Is there any way to do this with out C# or Python ?

Mr.A way I guess