$3\:-\:\:2\:-\:3\:-\:\left[\:-\:2\:+\:\left(1\:+\:3\right)\right]\:-\:3$
$\int2\pi\sqrt{1+x^2}dx$
$\left(6\frac{1}{3}-2\frac{1}{4}\right)\left(3\left(-2\right)^2-\frac{1}{2}^3\right)$
$a^2-a+0.25$
$\frac{45st}{9s}$
$3x<20+x$
$-5\left(y-11\right)$
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