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Here is this week's POTW:

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Let ##a,\,b,\,c## and ##d## be non-negative integers.

If ##a^2+b^2-cd^2=2022##, find the minimum of ##a+b+c+d##.

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Let ##a,\,b,\,c## and ##d## be non-negative integers.

If ##a^2+b^2-cd^2=2022##, find the minimum of ##a+b+c+d##.

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