China DOS Union

I have 31st floor code still not considering the situation where there are n same digits in front of the value, modify again as follows:

@echo off&setlocal enabledelayedexpansion

set "str=%random% %random% -%random% %random% %random% -%random% "

for %%i in (%str%) do call,set var=!var! n%%in

for %%i in (%var%) do set a=%%i&call :lp

echo !var:n=!

pause>nul&goto :eof

:lp

for %%i in (%var%) do (

    set b=%%i&set b=!b:~1,-1!&set c=%a:~1,-1%

    if !b! lss !c! (

       set var=!var:%a% =!

       set var=!var:%%i=%%i %a%!

    )

)

The code after the tag seems to have a logical problem. Please test the following numbers.
set "str=111 2 555 111 2 -8 0 -9 9 5 0"