zaqmlp

@echo off
set "prefix=test"
for /l %%a in (1 1 3) do (
    for /l %%b in (1 1 3) do (
        for /l %%c in (1 1 3) do (
            md "%prefix%\%prefix%%%a\%prefix%%%a_%%b\%prefix%%%a_%%b_%%c" 2>nul
        )
    )
)
pause
exitCOPY