# coding:utf-8
'''
filename: customexception.py
'''

class NegativeAgeException(RuntimeError):
    def __init__(self, age):
        super().__init__()
        self.age = age
        
def enterage(age):
    if age < 0:
        raise NegativeAgeException("Only positive integers are allowed")

    if age % 2 == 0:
        print("age is even")
    else:
        print("age is odd")
 
try:
    num = int(input("Enter your age: "))
    enterage(num)
except NegativeAgeException:
    print("Only integers are allowed")
except:
    print("something is wrong")