One lap of the runway on the school playground is 400 meters. How many meters is Xiao Ming running 3 laps every morning?
学校操场跑道一圈是400米，小明每天早晨跑3圈是多少米．
<gadget id="calculator">400 * 3</gadget>
<output>1_200</output>

<result>1_200</result>