各位大佬，这个问题怎样用python语言解决哇？

# -*- coding: UTF-8 -*-
def getAge(n):
    if (n == 1):
        return 10
    return getAge(n - 1) + 2

age = getAge(int(input("Do you want to know whose age,please input the number:")))
print("The number's age is " + atr(age))