There are 684 volumes of story books in the school library. The first grade students borrowed 179 volumes, and the second grade students borrowed 134 volumes. How many story books are left in the library?
学校图书室有684册故事书．一年级同学借去179册，二年级同学借去134册．图书室还剩多少册故事书？
<gadget id="calculator">684 - 179 - 134</gadget>
<output>371</output>

<result>371</result>