$$16\cdot31+\{2\cdot50-(5\cdot941\div2\cdot20\times71\cdot0-1875)\}$$
$2471$
$$496+2\times 50-\left(\frac{5\times 941}{2}\times 20\times 71\times 0-1875\right)$$
$$496+100-\left(\frac{5\times 941}{2}\times 20\times 71\times 0-1875\right)$$
$$496+100-\left(\frac{4705}{2}\times 20\times 71\times 0-1875\right)$$
$$496+100-\left(\frac{4705\times 20}{2}\times 71\times 0-1875\right)$$
$$496+100-\left(\frac{94100}{2}\times 71\times 0-1875\right)$$
$$496+100-\left(47050\times 71\times 0-1875\right)$$
$$496+100-\left(3340550\times 0-1875\right)$$
$$496+100-\left(0-1875\right)$$
$$496+100-\left(-1875\right)$$
$$496+100+1875$$
$$496+1975$$
$$2471$$
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$7\times 353$