This line has leading spaces.
  	This line has leading tabs.
  This line has both leading and trailing spaces.
	 	This line has leading tabs and trailing spaces.
Notice how this line has no leading/trailing whitespace.

    The previous line was empty but had leading spaces.

This line is normal but the next one has trailing whitespace.
The line below has only trailing spaces.

These lines demonstrate various whitespace patterns:
    Leading spaces only
  	Leading tabs only
  Trailing spaces only
 	Trailing tabs only
    Both leading and trailing spaces
 	Both leading and trailing tabs

Some lines have excessive whitespace:
    Lots of leading spaces and trailing spaces.
 	 	 Lots of leading tabs and trailing tabs.

Whitespace cleanup should remove all leading and trailing spaces!
This makes text formatting consistent and clean.