Deleting part of a form using other foms

Hello,
I am sorry but the title is not clear, I had trouble explaining it. Below is a screen of what I want to do, it will be easier to understand.

Basically, what I want to do is have all the parts in white transparent. I want to have the part in white delete the parts of the circle in the back.

please let me know if it is not clear;

Many thanks,
Capture d’écran 2022-02-01 à 08.37.30

Top ! perfection - thank you for the quick reply

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