@echo off
setlocal enabledelayedexpansion
cd /d "%~dp0"
set file=list.txt
set count=3
set i=0
for /f "delims=" %%A in (%file%) do (
  set #!i!=%%A
  set /a i+=1
)
for /l %%A in (1,1,%count%) do (
  set /a n=!random!%%i
  for %%B in (!n!) do (
    echo !#%%B!
  )
)

endlocal
pause
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