using System;

public class Child : Person
{
    public Child(string name, int age)
        : base(name, age)
    {
    }
    public override int Age
    {
        get
        {
            return base.Age;
        }
        set
        {
            if (!ValidateAge(value))
            {
                throw new ArgumentException("Child's age must be less than 15!");
            }
            base.Age = value;
        }
    }

    protected override bool ValidateAge(int age)
    {
        return age < 15;
    }
}