Duplicates in a List

"...everything that is made, is not necessary." // Arvo Pärt

You are given a list of numbers having some same repeating digits. Write a CC which will eliminate duplicate entries and return a cleaned list. Present the list to YAGPDB as user input and process it further finding duplicates. The list is as follows: 42 1 2 81 3 5 42 19 2 42 19 81 46

Example solution

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