In a subtraction formula, the sum of the minuend, the subtrahend and the difference is 180, and the difference is 8 less than the subtrahend. If the minuend remains the same and the subtrahend is reduced by 16, what is the difference?
在一个减法算式里，被减数、减数与差的和是180，而差比减数少8．如果被减数不变，减数减少16，差应变为多少？
<gadget id="calculator">180 / 2</gadget>
<output>90</output>

<gadget id="calculator">90 + 8</gadget>
<output>98</output>

<gadget id="calculator">98 / 2</gadget>
<output>49</output>

<gadget id="calculator">49 - 16</gadget>
<output>33</output>

<gadget id="calculator">90 - 33</gadget>
<output>57</output>

<result>57</result>