Zhang Lin bought a comic book and a composition book in the bookstore. The price of the comic book is 15.45 yuan, which is 3.58 yuan cheaper than the comic book. Zhang Lin gave the salesperson 50 yuan, how much should I get back?
张琳在书店买了一本连环画和一本作文书．连环画的价格是15.45元，作文书比连环画便宜3.58元．张琳给了售货员50元，应找回多少钱？
<gadget id="calculator">15.45 - 3.58</gadget>
<output>11.87</output>

<gadget id="calculator">11.87 + 15.45</gadget>
<output>27.32</output>

<gadget id="calculator">50 - 27.32</gadget>
<output>22.68</output>

<result>22.68</result>