When Xiao Ming did the calculation problem, he wrote the 3 in the subtrahend as 8, and the 6 in the tens place as 9. The difference obtained in this way is 149. What is the correct difference?
小明做计算题时，把被减数个位上的3写成了8，十位上的6写成了9，这样得到的差是149，正确的差是多少？
<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">90 - 60</gadget>
<output>30</output>

<gadget id="calculator">149 - 5 - 30</gadget>
<output>114</output>

<result>114</result>