The amphitheater in the park has 4 identical stands, each stand has 11 rows of chairs, and each row has 21 seats. How many seats are there in total in the amphitheater?
公园的露天剧场有4个同样的看台，每个看台有11排椅子，每排21个座位，露天剧场共有多少个座位？
<gadget id="calculator">21 * 11 * 4</gadget>
<output>924</output>

<result>924</result>