Xiaohong runs 4 laps along a square garden with a side length of 25 meters every day. How many meters does she run every day?
小红每天沿着边长25米的正方形花圃跑4圈，她每天跑步多少米．
<gadget id="calculator">25 * 4 * 4</gadget>
<output>400</output>

<result>400</result>