#####################################################################################
#
# Copyright (c) Microsoft Corporation. 
#
# This source code is subject to terms and conditions of the Microsoft Public
# License. A  copy of the license can be found in the License.html file at the
# root of this distribution. If  you cannot locate the  Microsoft Public
# License, please send an email to  dlr@microsoft.com. By using this source
# code in any fashion, you are agreeing to be bound by the terms of the 
# Microsoft Public License.
#
# You must not remove this notice, or any other, from this software.
#
#####################################################################################

def add(a, b):
    "add(a, b) -> returns a + b"
    return a + b

def factorial(n):
    "factorial(n) -> returns factorial of n"
    if n <= 1: return 1
    return n * factorial(n-1)

hi = "Hello from IronPython!"