If they differ by 82 let them be (x-41) and (x+41) for some x. Basically we take the middle term
So we have $(x-41)(x+41) = 12243$
Or $x^2- 1681 = 12243$
Or $x^2 = 12243 + 1681 = 13924 = 118^2$
Or $x= \pm 118$
Or $x = 118$ or $-118$
Taking $x = 118$ we get $118–41$ and $118+ 41$ that is $77,159$
also taking $x = -118$ we get $-77,-159$
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