=begin
#doctest
>> 3
=> 3
>> 0/0
ZeroDivisionError: divided by 0
	from (irb):1:in `/'
	from (irb):1
>> 3
=> 3
=end
=begin
#doctest
>> 3
=> 3
>> 0/0
ZeroDivisionError: divided by 0
	from (irb):1:in `/'
	from (irb):1
=end
=begin
#doctest
comments
>> 3
comments
=> 3
>> 0/0
comments
ZeroDivisionError: divided by 0
	from (irb):1:in `/'
	from (irb):1
comments
=end