A four-digit number is 1982.97 smaller than the original number after adding a decimal point. What is the four-digit number?
一个四位数，给它加上小数点后比原数小1982.97，这个四位数是多少．
<gadget id="calculator">100 - 1</gadget>
<output>99</output>

<gadget id="calculator">1_982.97 / 99</gadget>
<output>20.03</output>

<gadget id="calculator">20.03 * 100</gadget>
<output>2_003</output>

<result>2_003</result>