A manuscript has exactly 4 pages, 25 lines per page, and 28 characters per line. How many words are there in this manuscript?
一份稿件正好有4页，每页25行，每行28个字．这份稿件一共有多少字？
<gadget id="calculator">25 * 28 * 4</gadget>
<output>2_800</output>

<result>2_800</result>