When Naughty was calculating an addition problem, he mistook one of the addends 3.8 for 38, and the result was 65.9. What is the correct result of this problem?
淘气在计算一道加法题时，把其中一个加数3.8误看成了38，结果得到65.9，这道题的正确结果是多少？
<gadget id="calculator">65.9 - 38</gadget>
<output>27.9</output>

<gadget id="calculator">27.9 + 3.8</gadget>
<output>31.7</output>

<result>31.7</result>