Two numbers are subtracted, and the difference is 56. At this time, the minuend increases by 5, and the subtrahend increases by 6. What is the new difference?
两个数相减，差56，这时被减数增加5，减数增加6，那么新的差是多少．
<gadget id="calculator">71 - 16</gadget>
<output>55</output>

<result>55</result>