Follow the Gaussian algorithm to calculate the sum of 100 consecutive natural numbers from 101 to 200: 101+102+103+...+199+200=how much.
仿照高斯算法，计算从101到200这连续100个自然数的和：101+102+103+…+199+200=多少．
<gadget id="calculator">200 - 101</gadget>
<output>99</output>

<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<gadget id="calculator">99 * 50</gadget>
<output>4_950</output>

<result>4_950</result>