There are 1,420 science and technology books in the school library, 40 volumes of literature and art books are 5 times less than science and technology books, and 260 volumes of comic books are less than literature and art books. How many volumes of comic books are there in the library?
学校图书室现有科技书1420册，文艺书比科技书的5倍少40册，连环画比文艺书少260册．图书室有连环画多少册？
<gadget id="calculator">1_420 * 5</gadget>
<output>7_100</output>

<gadget id="calculator">7_100 - 40 - 260</gadget>
<output>6_800</output>

<result>6_800</result>