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    <input>
This is to test. this is to test
<p>This is to test. This is
...
This is to test.
this is to test
</input>
  2. or download this
    <output>
This is to test. this is to test
<p>This is to test. This is to test</p>
...
This is to test.
this is to test
</output>
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    $infile = $ARGV[0];

...
}
close(IN);
close(OUT);