class Person:
    def __init__(self, name, age):
        self.set_name(name)
        self.set_age(age)


    def get_name(self):
        return self._name


    def get_age(self):
        return self._age


    def set_age(self, age):

        if age < 0:
            raise Exception('Age must be positive!"')
        self._age = age


    def set_name(self, name):
        if len(name) < 3:
            raise Exception("Name's length should not be less than 3 symbols!")
        self._name = name

    def __str__(self):
        return f'Name: {self._name}, Age: {self._age}'


class Child(Person):
    def __init__(self, name, age):
        Person.__init__(self, name, age)


    def set_age(self, age):

        if age < 0:
            raise Exception('Age must be positive!"')
        elif age > 15:
            raise Exception("Child's age must be less than 15")
        self._age = age
        a

name = input()
age = int(input())


child = Child(name, age)
print(child)