When the little sloppy was doing a calculation problem in the exam, he miscalculated to multiply a number by 9 to divide by 9, and then miscalculated to add 30 to subtract 30, and the result was 18. If the correct order of operations is followed, the obtained What is the result.
小马虎在考试中做一道计算题时，将一个数乘以9错算成除以9，接着又将加上30错算成减去30，结果得18，如果按正确的运算顺序，所得的结果是多少．
<gadget id="calculator">18 + 30</gadget>
<output>48</output>

<gadget id="calculator">48 * 9</gadget>
<output>432</output>

<gadget id="calculator">432 * 9</gadget>
<output>3_888</output>

<gadget id="calculator">3_888 + 30</gadget>
<output>3_918</output>

<result>3_918</result>