Calculation: (100+99*1)+(99+99*2)+(98+99*3)+...+(2+99*99)+(1+99*100)=how much.
计算：(100+99*1)+(99+99*2)+(98+99*3)+…+(2+99*99)+(1+99*100)=多少．
<gadget id="calculator">5_050 * 100</gadget>
<output>505_000</output>

<result>505_000</result>