The store brings in 16 boxes of men's shirts and 18 boxes of women's shirts, with 25 pieces in each box. How many pieces of shirts are shipped in total?
商店运进男衬衫16箱，女衬衫18箱，每箱有25件，共运进衬衫多少件？
<gadget id="calculator">16 + 18</gadget>
<output>34</output>

<gadget id="calculator">34 * 25</gadget>
<output>850</output>

<result>850</result>