l = ['2110', '760', '10558', '2120', '(439)', '(370)', '2330', '(0)', '2340', '159', '65', '2350', '(98)', '(7)', '2410', '(0)', '(616)', '2400', '382', '9630']
for x in l:
if x.isnumeric():
if int(x) > 2000 and int(x) < 3000:
print(x)
<select>
<option value="1">11111111</option>
<option value="2">22222222</option>
<option value="3">33333333</option>
<option value="4">44444444</option>
</select>
select.border{
border: solid;
}
$('select').on('change', function(ev) {
if($(this).children(':selected').val() == '2'){
$(this).attr('class', '').addClass('border');
}
else{
$(this).attr('class', '').delClass;
}
});