# -*- coding: utf-8 -*-
"""
Created on Wed Nov  9 10:52:02 2022

@author: Sim
"""

import datetime
def birthyear():
    age = input('Enter age: ')
    now = datetime.datetime.now()
    curyear = now.year
    b_year = curyear - int(age)
    print('born.year= ', b_year)

birthyear()