Calculate (124+125+126+127+1)*4=how much.
计算(124+125+126+127+1)*4=多少．
<gadget id="calculator">124 + 125 + 126 + 127 + 1</gadget>
<output>503</output>

<gadget id="calculator">503 * 4</gadget>
<output>2_012</output>

<result>2_012</result>