78*57-78+78*43.
78*57-78+78*43．
<gadget id="calculator">78 * 57</gadget>
<output>4_446</output>

<gadget id="calculator">4_446 - 78</gadget>
<output>4_368</output>

<gadget id="calculator">78 * 43</gadget>
<output>3_354</output>

<gadget id="calculator">4_368 + 3_354</gadget>
<output>7_722</output>

<result>7_722</result>