$11+16y-4-y$
$sin\left(30-x\right)$
$-42=-7x^2-385$
$\frac{1}{25}+\frac{25x^4}{36}-\frac{x^3}{3}$
$\int\frac{\left(x+21\right)}{x^2-18x+77}dx$
$3x^2-48x+256=0$
$\sqrt{-1}^{6^{7^{8^9}}}$
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