Xiaofang lined up to go to the big cafeteria for dinner. She found that she was ranked 7th from the front to the back, and also the 7th from the bottom. How many people are there in this team?
小芳排队去大食堂打饭，她发现从前往后数，自己排第7，倒数也是第7，这个队伍一共有多少人
<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">6 * 2</gadget>
<output>12</output>

<gadget id="calculator">12 + 1</gadget>
<output>13</output>

<result>13</result>