Ding Ding is in the middle of a line. He counts 4 people to the right and 3 people to the left. How many people are there in this line?
丁丁排在一行队伍的中间，他朝右面数数有4个人，朝左面数数有3个人，这行队伍一共有多少个人．
<gadget id="calculator">4 + 3 + 1</gadget>
<output>8</output>

<result>8</result>