Students from six classes in the third grade participated in the tree planting activity. Each class is divided into 2 groups, with an average of 14 students in each group. How many people attended the event in total?
三年级六个班的同学参加植树活动．每班分2组，平均每组有14人．一共有多少人参加活动？
<gadget id="calculator">2 * 14 * 6</gadget>
<output>168</output>

<result>168</result>