old_contents: '''
  Created on Aug 1, 2017
  
  @author: alkaitz
  '''
  
  if __name__ == '__main__':
      pass
new_contents: '''
  Created on Aug 1, 2017
  
  @author: alkaitz
  '''
  
  '''
      [3 2 3] -> 1
  '''
  if __name__ == '__main__':
      pass
subject: Include quick sample for water level identification