class Employee(object):
    def __init__(self,name,salary):
        self.name = name
        self.salary = salary

    def printclass(self):
        try:
            print("{}'salary is {}, and his age is {}".format(self.name,self.salary,self.age))
        except AttributeError:
            print('Error! No age')

name = input()
salary = int(input())
e = Employee(name,salary)
e.printclass()
e.age = int(input())
e.printclass()