text: __author__ = "cauanicastro"
  __copyright__ = "Copyright 2015, cauanicastro"
  __credits__ = ["Cauani Castro"]
  __license__ = "Apache License 2.0"
  __version__ = "1.0"
  __created_on__ = "16-03-29"
  __maintainer__ = "cauanicastro"
  __email__ = "cauani.castro@hotmail.com"
  __status__ = "Examination program"
  
  
  def main():
      return 0
  
  
  if __name__ == '__main__':
      main()