8.2 The numbers a, b, c, and d are such that each subsequent number is 1 greater than the previous one. Can it be that $a^{2}+b^{2}=c^{2}+d^{2}$?
8.2 yes.

For example, these numbers are $-\frac{3}{2},-\frac{1}{2}, \frac{1}{2}, \frac{3}{2}$.

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