Make a cuboid wooden box without a cover, its length measured from the outside is 87 cm, its width is 42 cm, its height is 35 cm, and its board is 2 cm thick. What is its volume in cubic centimeters?
做一只无盖的长方体木箱，从外面量长87厘米，宽42厘米，高35厘米，木板厚2厘米，它的容积是多少立方厘米？
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">87 - 4</gadget>
<output>83</output>

<gadget id="calculator">42 - 4</gadget>
<output>38</output>

<gadget id="calculator">35 - 2</gadget>
<output>33</output>

<gadget id="calculator">83 * 38 * 33</gadget>
<output>104_082</output>

<result>104_082</result>