How to print on more than one line?

The backslash escapes the next character in after it in a string. This lets you make special characters, like the newline character, "\n":

print("one\ntwo")
-- one
-- two

You can also make strings with [[ and ]] instead of ". These don't allow escaping, but you can contain a newline in them plainly:

print([[one
two]])
-- one
-- two

Finally, you can escape a literal newline using a backslash:

print("one\
two")
-- one
-- two

That last one is almost never done, though.

In such a simple case where you know ahead of time where you want your newlines, it makes more sense to just break them into two print statements. It will be easier to read and maintain that way.

print("one")
print("two")