using System;

namespace PersonProgram
{
    class Program
    {
        static void Main(string[] args)
        {
            Person p1 = new Person(30000);
            Console.WriteLine("Person Salary: " + p1.Salary);
            p1.Salary = 40000;
            Console.WriteLine("Person Salary: " + p1.Salary);

            Student s1 = new Student()
            {
                PocketMoney = 600
            };
            Console.WriteLine("Student PocketMoney: " + s1.PocketMoney);
            s1.SpendMoney(100);
            Console.WriteLine("Student PocketMoney: " + s1.PocketMoney);
            Console.ReadLine();


        }
    }

    class Person
    {
        private double basicSalary;

        public double Salary { get { return basicSalary; } set { basicSalary = value; } }

        public Person()
        {
            basicSalary = 2000;
        }

        public Person(double Salary)
        {
            basicSalary = Salary;
        }


    }

    class Student : Person
    {
        public double PocketMoney { get; set; }

        public void SpendMoney(double Money)
        {
            PocketMoney -= Money;
        }
    }
}