Tree Path Problem

[user73]

I want to get the index in list C by comparing List A and List B.
I tried to use the member index, but it doesn’t work.

220218_Find.gh (9.3 KB)
Please take a look at my file.

[HS_Kim]

Looking for something lit this?

220218_Find_re.gh (16.3 KB)

[user73]

Thank you
one more questions
How did you capture all the component names ?

[HS_Kim]

Sunglasses