Standard input is empty

to_s
-@
+
-
*
/
div
%
modulo
divmod
fdiv
**
abs
magnitude
==
===
<=>
>
>=
<
<=
~
&
|
^
[]
<<
>>
to_f
size
zero?
odd?
even?
succ
integer?
upto
downto
times
next
pred
chr
ord
to_i
to_int
floor
ceil
truncate
round
gcd
lcm
gcdlcm
numerator
denominator
to_r
rationalize
singleton_method_added
coerce
i
+@
eql?
quo
remainder
real?
nonzero?
step
to_c
real
imaginary
imag
abs2
arg
angle
phase
rectangular
rect
polar
conjugate
conj
between?
nil?
=~
!~
hash
class
singleton_class
clone
dup
initialize_dup
initialize_clone
taint
tainted?
untaint
untrust
untrusted?
trust
freeze
frozen?
inspect
methods
singleton_methods
protected_methods
private_methods
public_methods
instance_variables
instance_variable_get
instance_variable_set
instance_variable_defined?
instance_of?
kind_of?
is_a?
tap
send
public_send
respond_to?
respond_to_missing?
extend
display
method
public_method
define_singleton_method
__id__
object_id
to_enum
enum_for
equal?
!
!=
instance_eval
instance_exec
__send__