A class of 50 students in the fifth grade took the final exam. After the results were announced, 8 students got full marks in mathematics, 3 students got full marks in both math and Chinese, and 27 students got full marks in neither of these two subjects. I would like to ask: How many people have the full score in Chinese?
五年级一班50个学生参加期末考试，成绩公布后，数学得满分的有8人，数学及语文均得满分的有3人，这两科都没有得满分的有27人．请问：语文成绩得满分的有多少人？
<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">50 - 27 - 5</gadget>
<output>18</output>

<result>18</result>