The school library has 6,000 books, including 3,000 science and technology books, 2,000 literature and art books, and the rest are comic books. How many comic books are there?
学校图书馆有6000本藏书，其中科技书3000本，文艺书2000本，其余都是连环画，连环画一共多少本？
<gadget id="calculator">3_000 + 2_000</gadget>
<output>5_000</output>

<gadget id="calculator">6_000 - 5_000</gadget>
<output>1_000</output>

<result>1_000</result>