QIAOXINGXING

http://www.bathome.net/thread-5548-1-1.html

@echo off
set "str=22=44=44=33==11=00=99=="
:lp
for /f "tokens=1* delims==" %%a in ("%str%") do (
  set "str=%%a%%b"
  if "%%b" neq "" goto lp
)
echo %str%
pause
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