# 849 second challenge

${x}^{2}+{y}^{2}=849-{x}^{2}{y}^{2}$

Find all possible $$x$$ values to the equation above such that $$x$$ and $$y$$ are both positive integers. And state the values of $$x$$ in ascending order with no spaces in between (e.g. if the solutions were $$2$$, $$55$$ and $$13$$ you would write "$$21355$$").

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