The text "The Story of a Small Village" has 19 lines and 21 characters in each line. How many characters are there in this article?
课文《一个小村庄的故事》有19行，每行21个字，这篇文章有多少个字．
<gadget id="calculator">19 * 21</gadget>
<output>399</output>

<result>399</result>