Logical Operation Help

Dear Dynamo Experts,
Can someone help me to do logical operation shown below. As an brief description:
I want to prepare script to flatten L3 list to L2 list while only taking just first value of value located at L1. Please see attached photo:

Logical Operation.dyn (1.3 KB)



Alternative to the suggestion by @m.rijsmus you can use longest lacing instead of list levels :slight_smile: There is not a difference in performance to my knowledge :slight_smile:


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Wow. Many Thanks Dears. Great Solution.