The students line up to do exercises, Xiaoming is ranked 4th from the front, and Xiaoming is 5th from the back. How many people are there in this team?
同学们排队做操，从前面数小明排4，从后面数小明排第5，这一队一共有多少人．
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">3 + 4 + 1</gadget>
<output>8</output>

<result>8</result>