428*(3080-1980)-742．
428*(3080-1980)-742．
<gadget id="calculator">3_080 - 1_980</gadget>
<output>1_100</output>

<gadget id="calculator">428 * 1_100</gadget>
<output>470_800</output>

<gadget id="calculator">470_800 - 742</gadget>
<output>470_058</output>

<result>470_058</result>