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@echo off & setlocal enabledelayedexpansion

for /f "delims=" %%i in (1.txt) do (
	set line=%%i
	if "!line:~,1!"=="=" (
		set n=1
		if defined pline (
			echo;!pline:,=	!& set "pline="
		)
	) else if defined n (
		set "n=" & set "pline=%%i"
	) else set pline=!pline!	%%i
	
)
pause & exit /b
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