@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%a in (a.txt) do (
  set /a m=0,n+=1
  for %%b in (%%a) do set /a m+=1&set #!n!!m!=%%b
)
for /l %%a in (2,1,%m%) do (
  (for /l %%b in (1,1,%n%) do (
     echo !#%%b1! !#%%b%%a!
  ))>a_1-%%a.txt
)
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gawk "{ for (i=2; i<=NF; i++){print $1 \"\t\" $i >f i-1 \".txt\"} }" f="a_" a.txt
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@echo off
md tmp 2>nul
for /l %%a in (2,1,64) do call:sc "tokens=1,%%a delims= " "%%a"
exit /b
:sc
(for /f %1 %%b in (a.txt) do echo %%b %%c)>tmp\a_1-%~2.txt
goto :eof
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@echo off&setlocal enabledelayedexpansion
for /f "tokens=1*" %%i in (a.txt) do (
	set n=
	for %%j in (%%j) do (
		set /a n+=1
		>>"a_!n!.txt" echo %%i %%j
        )
)
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@echo off&setlocal enabledelayedexpansion
md tmp 2>nul
set "n=6"
for /l %%a in (2,1,64) do (
  set/a n+=2
  (for /f "delims=" %%b in (a.txt) do (
    set "str=%%b"
    for %%c in (!n!) do echo !str:~,8!!str:~%%c,2!
  ))>tmp\a_1-%%a.txt
)
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