There are 53 students in class 62, among them 18 students participated in the art group, 9 students participated in the sports class, 3 students participated in the science class, and 4 students participated in two interest groups at the same time. There is one person in three interest groups, so how many people did not participate in any group?
六二班有53名同学，其中参加艺术类小组的人有18名，参加体育类的有9名，参加科学类的有3名，其中同时参加两个兴趣小组的人有4个，同时参加三个兴趣小组的有1人，那么有多少人什么小组都没参加？
<gadget id="calculator">3 - 4</gadget>
<output>-1</output>

<gadget id="calculator">18 + 9 + (-1) + 1</gadget>
<output>27</output>

<gadget id="calculator">53 - 27</gadget>
<output>26</output>

<result>26</result>