2*3*4+4*5*6+...+99*100*101=how much.
2*3*4+4*5*6+…+99*100*101=多少．
<gadget id="calculator">1 + 2 + 3</gadget>
<output>6</output>

<gadget id="calculator">4_950 - 6</gadget>
<output>4_944</output>

<gadget id="calculator">490_050 + 32_835 + 4_944</gadget>
<output>527_829</output>

<result>527_829</result>