It is known that a@b=2*a+b, then 99@1=how much.
已知a@b=2*a+b，那么99@1=多少．
<gadget id="calculator">2 * 99</gadget>
<output>198</output>

<gadget id="calculator">198 + 1</gadget>
<output>199</output>

<result>199</result>