Li Gang's home is 218 meters away from the school. One morning when he arrived at school, he found that he hadn't brought his homework, so he returned home to pick it up. How far did he walk to school that morning?
李刚家到学校共218米，某天早上他到校后发现没带作业，又返回家去取，这一天早晨他到学校共走了多远？
<gadget id="calculator">218 * 3</gadget>
<output>654</output>

<result>654</result>