$2+3x<101$
$7a+4+2a-1$
$2x+7x+5x+5$
$\left(6-10\right).\left(11-13+7\right)-\left(4-6+5\right).\left(1-7-4\right)$
$x^4+3x^3-30x^2-6x+56$
$-6\:+\:2\:.\:-6\:+\:5\::\:-\:1\:$
$-4732+-3269$
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