Xiaojun has to walk 574 meters from home to school, and Xiaojun has to go back and forth twice a day from home to school. How many meters has he walked in total?
小军从家到学校要行574米，小军每天从家到学校要往返两次，一共行了多少米？
<gadget id="calculator">574 * 4</gadget>
<output>2_296</output>

<result>2_296</result>