Python 2.7.10 (default, Oct 14 2015, 16:09:02) 
[GCC 5.2.1 20151010] on linux2
Type "copyright", "credits" or "license()" for more information.
>>> def add(a,b):
	print "ADDING %d + %\d" %(a,b)
	return a+b
def subtract(a,b)
SyntaxError: invalid syntax
>>> def subtract (a,b):
	print "Subtracting %d-%d"%(a,b)
	return a-b
def multiply (a,b)
SyntaxError: invalid syntax
>>> def multiply (a,b):
	print "multiply %d x %d :"%(a,b)
	return a*b
def divide (a,b):
	
SyntaxError: invalid syntax
>>> def divide (a,b):
	print "divide %d / %d:" %(a,b)
	return a/b
add(2,4)
SyntaxError: invalid syntax
>>> add(2,4)

Traceback (most recent call last):
  File "<pyshell#16>", line 1, in <module>
    add(2,4)
NameError: name 'add' is not defined
>>> add
