((367-67)*5-300)/15．
((367-67)*5-300)/15．
<gadget id="calculator">367 - 67</gadget>
<output>300</output>

<gadget id="calculator">300 * 5</gadget>
<output>1_500</output>

<gadget id="calculator">1_500 - 300</gadget>
<output>1_200</output>

<gadget id="calculator">1_200 / 15</gadget>
<output>80</output>

<result>80</result>