@echo off&setlocal enabledelayedexpansion
(for /l %%a in (1,1,2500) do set /p k%%a=)<2.txt
set n=3
for /l %%a in (1,1,10) do set _%%a=%%a
for /f "delims=" %%a in (1.txt) do (
    >>!n!.txt echo;%%a
    for /l %%b in (1,1,10) do for %%c in (!_%%b!) do >>!n!.txt echo;!k%%c!
    for /l %%d in (1,1,10) do set /a _%%d+=10
    set /a n+=1
)
pause
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@echo off & setlocal enabledelayedexpansion
set n=2
for /f "delims=" %%i in (2.txt) do set /a n+=1&set "_!n!=%%i"
set n=-1
for /f "delims=" %%i in (1.txt) do (
    set /a n+=1, m=n%%10, o=n/10+3
    if !m!==2 for %%j in (!o!) do echo;!_%%j!>>!o!.txt
    echo;%%i>>!o!.txt
)
pause
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@echo off
(for /l %%i in (1,1,200) do echo;AAA %%i)>1.txt
(for /l %%i in (1,1,20) do echo;BBB %%i)>2.txt
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