There are 236 science and technology books in the library, which is 4 times less than the story book. How many story books are there?
图书馆有科技书236本，比故事3倍少4本，故事书有多少本？
<gadget id="calculator">236 + 4</gadget>
<output>240</output>

<gadget id="calculator">240 / 3</gadget>
<output>80</output>

<result>80</result>