The children stood in a row, and the team member Xiaoxing said: "There are 3 people on my left and 4 people on my right. How many people are there in this row?"
小朋友站成一排，队员小星说："我的左边有3人，右边有4人，这一排一共有多少人？
<gadget id="calculator">3 + 4 + 1</gadget>
<output>8</output>

<result>8</result>