There is a four-digit integer, add a decimal point in front of one of its digits, and then add this four-digit number, the result is 2016.97, find this four-digit integer.
有一个四位整数，在它的某位数字前面加上一个小数点，再和这个四位数相加，得数是2016.97，求这个四位整数．
<gadget id="calculator">1 / 100</gadget>
<output>1/100 = around 0.01</output>

<gadget id="calculator">1 + (1/100)</gadget>
<output>101/100 = around 1.01</output>

<gadget id="calculator">2_016.97 / (101/100)</gadget>
<output>1_997</output>

<result>1_997</result>