There are (1, 5, 10, 2, 10, 20, 3, 15, 30)... arrays, what is the sum of the three numbers in the 99th array.
有(1，5，10,2，10，20,3，15，30)…的数组，第99个数组里三个数的和是多少．
<gadget id="calculator">16 * 99</gadget>
<output>1_584</output>

<result>1_584</result>