:: Remove: 1

# A comment to remove.

Remove. # A comment to remove.

:: Remove: 2

\\# A comment to remove.

Remove. \\# A comment to remove.

:: Remove: 3

\\\\# A comment to remove.

Remove. \\\\# A comment to remove.

:: Keep: 1

\# This is a valid octothorpe.

Keep. \# This is a valid octothorpe.

:: Keep: 2

\\\# A comment to keep.

Keep. \\\# A comment to keep.
