The composition manuscript has 20 lines per page and 24 grids per line. This manuscript has 4 pages. How many words are there in total?
作文稿子每页有20行，每行24格，这篇文稿有4页，大约共有多少字．
<gadget id="calculator">20 * 24 * 4</gadget>
<output>1_920</output>

<result>1_920</result>