When the little sloppy was doing a subtraction problem, he mistakenly wrote 8 for the 3 in the unit digit of the subtrahend, and 2 for the l in the tens digit of the subtraction. The calculated difference is 78, so what is the correct answer?
小马虎在做一道减法题时，把被减数个位上的3错写成了8，把减数十位上的l写成了2，这样算得的差是78，那么正确的答案是多少．
<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">10 - 5</gadget>
<output>5</output>

<gadget id="calculator">78 - 5</gadget>
<output>73</output>

<result>73</result>