There are 72 science and technology books in the library, which is 16 fewer than twice the number of story books. How many story books are there?
图书馆有科技书72本，比故事书本数的2倍少16本．故事书有多少本？
<gadget id="calculator">72 + 16</gadget>
<output>88</output>

<gadget id="calculator">88 / 2</gadget>
<output>44</output>

<result>44</result>