When little sloppy was doing a subtraction problem, he mistook the subtrahend 16 for 19, and the result was 55. Do you know the correct number for this problem?
小马虎在做一道减法题时，错把减数16看成了19，结果得55，你知道这道题的正确得数是多少吗？
<gadget id="calculator">19 - 16</gadget>
<output>3</output>

<gadget id="calculator">55 + 3</gadget>
<output>58</output>

<result>58</result>