Check if sheet in array is unprotected

Hi all,

How can I re-write below code:

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to apply it to an array of sheets? I have following array:

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and code (see below) to protect them. Though, I don't want to re-protect them if they are already protected. So the code needs to somehow check which sheets in the array are currently unprotected and only (!) protect those. How can I achieve that?

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