The students donated a total of 1038 books for the children in the disaster area, including 421 comic books, 367 story books, and the rest were science and technology books. How many science and technology books are there?
同学们为灾区小朋友捐书，一共捐了1038本，其中连环画421本，故事书367本，其余的是科技书，科技术有多少本？
<gadget id="calculator">1_038 - 421 - 367</gadget>
<output>250</output>

<result>250</result>