There are 729 story books in the bookstore, the number of technology books is 1/3 of the story books, and the comic books are technology books, how many comic books are there?
书店有故事书有729本，科技书的本数是故事书的(1/3)，漫画书是科技书的，漫画书有多少本？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">729 * (1/3) * (1/3)</gadget>
<output>81</output>

<result>81</result>