Students in a certain class are doing radio exercises, and they are arranged in four equal columns. In the column where Xiaofang is, she is the 8th whether counting from the front or from the back. How many students are there in this class?
某班学生做广播操，正好排成相等的四列，小芳所在的那一列，无论是从前面数还是从后面数她都是第8个．这个班共有学生多少人．
<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<gadget id="calculator">16 - 1</gadget>
<output>15</output>

<gadget id="calculator">15 * 4</gadget>
<output>60</output>

<result>60</result>