using System;

interface student

{

    //string name;

    int roll{get;set;}

     void printName();

}

public class Program : student

{

    public static void Main()

    { 

    }

    private int _roll; 

     public int roll  // read-write instance property

    {

        get => _roll;

        set => _roll = value;

    }

    public void printName()

    {

        Console.WriteLine("Name");

    }

}