There are 16 science fiction books in the class book corner, and the number of story books is three times that of science fiction books. How many books of these two kinds of books are there in the book corner?
班级图书角内有科幻书16本，故事书的本数是科幻书的3倍，图书角内这两种书共有多少本？
<gadget id="calculator">16 * 3</gadget>
<output>48</output>

<gadget id="calculator">48 + 16</gadget>
<output>64</output>

<result>64</result>