@echo off
cd\
cls
FOR /F "delims=- tokens=1,2,3" %%g IN ("%computername%") DO (CALL :PARSE2 %%g %%h %%i)
:PARSE2
set _RM=%2
SET _RM=%_RM:~2,3%
IF %_RM% EQU 4 (SET /A _PCNum=%3 + 42) else (SET _PCNum=%3)
IF %_PCNum% LSS 10 (SET /A _PCNum=%_PCNum% + 10 - 10)

echo.
echo PC Name = %computername%
echo Location = %_RM%
echo user = tu0100241pc%_PCNum%
echo password = I don't know this

REM Un-REM these lines and modify
REM SET User=tu0100241pc%_PCNum%
REM SET PW=whatever your pw is
REM start steam.exe -user

pause
exit