Lin Ping practiced running with five friends, and each of them ran 600 meters. How many meters did they run in total?
林平和5位朋友练习跑步，每人跑600米，他们一共跑了多少米．
<gadget id="calculator">1 + 5</gadget>
<output>6</output>

<gadget id="calculator">600 * 6</gadget>
<output>3_600</output>

<result>3_600</result>