using System;

public class Program

{

    class Student

    {

         string name;

        public int age;

        public int id;

        public string data{ get{ return name;}  //property 

                            set{ name=value.ToUpper();}

                          }

        public Student(int sid)

        {

            id=sid;

        }

    }

    public static void Main()

    {

        Student st= new Student(10);

        st.data="Sam";

        st.age=23;

        Console.WriteLine(st.data);

        Console.WriteLine(st.id);

    }

}