When Xiaoli was doing the question, because of her carelessness, she wrote 8 for the 3 in the subtrahend and 4 for the 0 in the tens place. The calculated difference is 199. What is the correct difference?
小丽做题时，由于粗心大意，把减数个位上的3写成了8，把十位上的0写成4，这样算得的差是199，正确的差是多少？
<gadget id="calculator">40 - 0</gadget>
<output>40</output>

<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">40 + 5</gadget>
<output>45</output>

<gadget id="calculator">199 + 45</gadget>
<output>244</output>

<result>244</result>