When Ma Xiaohu was doing an integer addition, he regarded the 6 in the ones digit of one addend as 9, and the 8 in the tens digit of the other addend as 3, and the sum obtained was 43. What is the correct result?
马晓虎在做一道整数加法时，把一个加数的个位的6看作9，把另一个加数的十位上的8看作3，所得的和是43，正确的结果应是多少．
<gadget id="calculator">43 - 3</gadget>
<output>40</output>

<gadget id="calculator">40 + 50</gadget>
<output>90</output>

<result>90</result>