short code – WordPress keeps inserts automatically

I am using the plugin & # 39; SyntaxHighlighter Evolved & # 39; in WordPress and when I create a block of code, insert a
. If I put everything in one line, of course, I would not insert them. I want to be able to have a block of code with several lines without the
.

This is what I am writing:
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This is what the preview shows:
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How do I eliminate the
Keeping the new lines?