Sort w/o helper column?

Hi,

how to sort text data without helper column? Results are in U7:U16 like these: S-11, S-9, S-14, S-7.... How to sort them?
Here is the formula:

{=IFERROR(INDEX(List1!$E$2:$E$2000;SMALL(IF((List1!B$2:B$2000>=$Q$12)*(List1!J$2:J$2000>500)*(List1!E$2:E$2000<>"")*(List1!B$2:B$2000<>"")*(List1!J$2:J$2000<>"")*(COUNTIF($U$6:U6;List1!E$2:E$2000)=0);ROW(List1!E$2:E$2000)-ROW(List1!E$2)+1;"");1));"")}