A careless student, when doing addition, regards 0 in a certain percentile as 9, and the resulting sum is 17.36. What is the original correct sum?
某个粗心的学生，做加法时，把某个加数百分位上的0看作9，结果得的和是17.36，原来正确的和是多少．
<gadget id="calculator">17.36 - 0.09</gadget>
<output>17.27</output>

<result>17.27</result>