Demon

@echo off
set "$=!#$%%&'()*+,-./:;<=>?@[\]^_`{|}~""
setlocal enabledelayedexpansion
(for /l %%i in (1, 1, 10) do (
    set "_="
    for /l %%j in (1, 1, 30) do (
        set /a n = !random! %% 32
        for /l %%k in (!n!, 1, !n!) do (
            set "_=!_!!$:~%%k,1!"
        )
        
    )
    echo !_!
)) > 1.txt
pauseCOPY