PRINTING A DOCUMENT WITH TWO LINES:
CS139 is
super fun.

PRINTING AN EMPTY DOCUMENT:

REMOVING LINE 0:
super fun.

ADDING TWO MORE LINES:
super fun.
sooooooper fun
fun.

LONGEST LINE:
sooooooper fun

PRINTING A COPY OF THE DOCUMENT:
super fun.
sooooooper fun
fun.

THE COPY IS EQUAL TO THE ORIGINAL?
true

THE COPY IS EQUAL TO AN EMPTY DOCUMENT?
false