# -*- coding: utf-8 -*-
"""
Created on Mon Nov 23 16:01:34 2015

@author: pre
"""

# -*- coding: utf-8 -*-
"""
Created on Mon Nov 23 16:01:34 2015

@author: pre
"""

# -*- coding: utf-8 -*- Created on Mon Nov 23 16:01:34 2015  @author: pre