15. Use sets to find the two six-digit numbers with all different digits where the square of the number has none of the digits of the number. If you can't figure this one out, there are three hints...

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Extracted text: 15. Use sets to find the two six-digit numbers with all different digits where the square of the number has none of the digits of the number. If you can't figure this one out, there are three hints written in reverse in the next cell down. Remember, to reverse a string, you can use the slicing notation str[ ::-1]. Hint 1: .srebmem xis sah tes eht taht mrifnoc dna tes a otni rebmun eht trevnoC Hint 2: .ti morf tes a etaerc dna rebmun eht eraugs nehT Hint 3: .htgnel orez sah stes owt eht fo noitcesretni eht rehtehw tseT