Regulations: a※b=(b+a)*b, then (2※3)※5=how much.
规定：a※b=(b+a)*b，那么(2※3)※5=多少．
<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">5 + 15</gadget>
<output>20</output>

<gadget id="calculator">20 * 5</gadget>
<output>100</output>

<result>100</result>