The tax law stipulates that if the monthly salary is more than 3500 yuan but less than 5000 yuan, 4% of the part exceeding 3500 yuan should be paid as personal income tax. Uncle Ma paid personal income tax of 16 yuan last month. How much salary did Uncle Ma actually get last month?
税法规定，每月工资超过3500元低于5000元的，要缴纳超出3500元那部分的4%作为个人所得税．马叔叔上个月缴纳了16元的个人所得税，马叔叔上个月实际拿到多少工资？
<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">16 / (1/25)</gadget>
<output>400</output>

<gadget id="calculator">3_500 - 16</gadget>
<output>3_484</output>

<gadget id="calculator">400 + 3_484</gadget>
<output>3_884</output>

<result>3_884</result>