A certain primary school students participated in summer camp public welfare activities: 114 people went to military camps, 76 people went to children's welfare homes, 86 people went to nursing homes, and 124 people went to community service stations. How many people participated in this event?
某小学学生参加夏令营公益活动情况：去军营114人，去儿童福利院76人，去敬老院86人，去社区服务站124人．一共有多少人参加此次活动？
<gadget id="calculator">114 + 76 + 86 + 124</gadget>
<output>400</output>

<result>400</result>