The school held the "Haibao" image design competition. The first grade exhibited 18 works, 3 less than the third grade, and the fourth grade exhibited 5 less than the third grade. How many works did the fourth grade exhibit?
学校举办"海宝"形象设计大赛，一年级参展作品18件，比三年级少3件，四年级参展作品比三年级2倍少5件，四年级参展作品有多少件？
<gadget id="calculator">28 + 3</gadget>
<output>31</output>

<gadget id="calculator">31 * 2</gadget>
<output>62</output>

<gadget id="calculator">62 - 5</gadget>
<output>57</output>

<result>57</result>