When the little sloppy was doing an addition problem, he accidentally mistook the "8" in the ones place as a "3", and the "1" in the tens place as a "7", and the result was 654. What should be the correct sum?
小马虎在做一道加法题时，不小心把个位上的"8"看成了"3"，把十位上的"1"看成了"7"，结果所得的和是654．正确的和应该是多少？
<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">70 - 10</gadget>
<output>60</output>

<gadget id="calculator">5 - 60</gadget>
<output>-55</output>

<gadget id="calculator">654 + (-55)</gadget>
<output>599</output>

<result>599</result>