python 3.x - why the print fucntion don't work? -

** why don't print methods work in function total? thx! **

def main():     firstage = int(input('enter age:'))     secondage = int(input("enter best friend's age:"))  def total(firstage,secondage):     response = sums(firstage,secondage)     print(response)    def sums(num1, num2):     result = int(num1 + num2)     return result  main() 

because not calling total function inside main function

change main function add total function inside this

def main():     firstage = int(input('enter age:'))     secondage = int(input("enter best friend's age:"))     total(firstage,secondage)