Each item of the following sequence is an array composed of 3 numbers, which are: (1, 2, 3), (2, 4, 5), (3, 6, 7)..., the three numbers in the 100th group What is the sum of the numbers.
下列数列的每一项是由3个数构成的数组，它们依次是：(1、2、3)，(2、4、5)，(3、6、7)…，第100组内的三个数的和是多少．
<gadget id="calculator">100 * 2</gadget>
<output>200</output>

<gadget id="calculator">200 + 1</gadget>
<output>201</output>

<gadget id="calculator">100 + 200 + 201</gadget>
<output>501</output>

<result>501</result>