(6409+23*17)/68．
(6409+23*17)/68．
<gadget id="calculator">23 * 17</gadget>
<output>391</output>

<gadget id="calculator">6_409 + 391</gadget>
<output>6_800</output>

<gadget id="calculator">6_800 / 68</gadget>
<output>100</output>

<result>100</result>