Regardless of counting from front to back or from back to front, Nan Nan is ranked 8th. How many children are there in this team?
无论从前往后数，还是从后往前数，楠楠都排在第8个，这一队共有多少个小朋友．
<gadget id="calculator">7 + 7 + 1</gadget>
<output>15</output>

<result>15</result>