"""converting degrees celsius to fahrenheit
As a script use this file as:
python celsius2fahrenheit degrees_celsius
"""

import sys

def celsius2fahrenheit(celsius) :
    """A function for converting degrees celsius to fahrenheit"""
    return float(celsius) * 9 / 5 + 32

if __name__ == '__main__' :
    celsius = int(sys.argv[1])
    fahrenheit = celsius2fahrenheit(celsius)
    print celsius, "degrees celsius equals", fahrenheit, "degrees fahrenheit"