class Employee:
def __init__(self,name,salary):
self.__name = name
self.__salary = salary
def printclass(self):
print(f"{self.__name}'salary is {self.__salary}, and his age is {self.age}")
name = input()
salary = int(input())
age = int(input())
e = Employee(name, salary)
try:
e.printclass()
except:
print('Error! No age')
e.age = age
try:
e.printclass()
except:
print('Error! No age')

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