There are some storybooks, which are given to 4 students, and each student gets 2 books. How many of these storybooks are there in total?
有一些故事书，分给4个同学，每个同学分得2本，这些故事书一共有多少本？
<gadget id="calculator">2 * 4</gadget>
<output>8</output>

<result>8</result>