Calculate (12.6*4-0.1)*20+201*5=how much.
计算(12.6*4-0.1)*20+201*5=多少．
<gadget id="calculator">12.6 * 4</gadget>
<output>50.4</output>

<gadget id="calculator">50.4 - 0.1</gadget>
<output>50.3</output>

<gadget id="calculator">50.3 * 20</gadget>
<output>1_006</output>

<gadget id="calculator">201 * 5</gadget>
<output>1_005</output>

<gadget id="calculator">1_006 + 1_005</gadget>
<output>2_011</output>

<result>2_011</result>