There are 709 literature and art books in the school library, 300 fewer literature and art books than science and technology books, and 4 times as many story books as science and technology books. How many story books are there in the school library?
学校图书馆有文艺书709本，文艺书比科技书少300本，故事书的本数是科技书的4倍．学校图书馆有故事书多少本？
<gadget id="calculator">709 + 300</gadget>
<output>1_009</output>

<gadget id="calculator">1_009 * 4</gadget>
<output>4_036</output>

<result>4_036</result>