#!/usr/bin/python

"""
Main file
"""

__author__ = "Sunil"
__copyright__ = "Copyright 2015"
__license__ = "GNU License"
__version__ = "0.1.0"
__email__ = "suba5417@colorado.edu"

import os
import sys

def main(argv):
    pass

def Add(a, b):
    """
    returns the sum of a, b
    """
    return a - b

def Sub(a, b):
    """
    return the sub of a, b
    """
    return a - b

if __name__ == "__main__":
    main(sys.argv)
