Xinhua Bookstore shipped 2,800 literary books, and 1,200 scientific books were 1,200 fewer than twice as many literary books. How many volumes of science and technology books are shipped.
新华书店运进文艺书2800册，运进的科技书比文艺书的2倍少1200册．运进科技书多少册．
<gadget id="calculator">2_800 * 2</gadget>
<output>5_600</output>

<gadget id="calculator">5_600 - 1_200</gadget>
<output>4_400</output>

<result>4_400</result>