What is the product of the sum of 38 and 72 multiplied by their difference?
38与72的和乘以它们的差，积是多少？
<gadget id="calculator">38 + 72</gadget>
<output>110</output>

<gadget id="calculator">72 - 38</gadget>
<output>34</output>

<gadget id="calculator">110 * 34</gadget>
<output>3_740</output>

<result>3_740</result>