(1/1)+(1/2)+(2/2)+(1/2)+(1/3)+(2/3)+(3/3)+(2/3)+(1 /3)+…+(1/100)+(2/100)+(3/100)+…+(100/100)+(99/100)+…+(2/100)+(1/100 ) = how much.
(1/1)+(1/2)+(2/2)+(1/2)+(1/3)+(2/3)+(3/3)+(2/3)+(1/3)+…+(1/100)+(2/100)+(3/100)+…+(100/100)+(99/100)+…+(2/100)+(1/100)=多少．
<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<gadget id="calculator">101 * 50</gadget>
<output>5_050</output>

<result>5_050</result>