using System;

public class Program

{

    public static void Main()

    {

        Person p = new Person();

        p.Name = "Lance Camat";

        Console.WriteLine(p.Name);

        p.address = "Las Pinas City ";

        Console.WriteLine(p.address);

        p.Grade = 12;

        Console.WriteLine("Grade " + p.Grade);

    }

    public class Person{

        private string name;

        private int grade = 12;

        private int age;

        public string address{get; set;}

        public int Grade{

                get {return grade;}

                set {

                    if (value > 0)

                        grade = value;

                }

        }

        public string Name{

            get{return name;}

            set{name = value;} 

        } 

        public int Age{

                    get {return age; }

                }

​

            }

            }

​

​