The number 5000 can be obtained by omitting the mantissa after some natural hundreds of digits by using the "rounding" method. What is the maximum difference between these natural numbers and 5000?
用"四舍五入"法把某些自然数百位后面的尾数省略，可以得到数5000，则这些自然数与5000的最大差值是多少．
<gadget id="calculator">5_000 - 4_950</gadget>
<output>50</output>

<result>50</result>