//Display public attribute with public method

class a
{
	public int k; //attribute
	//Public method
	public void display()
	{
		System.Console.WriteLine("R4R");
	}
}
class b 
{
	public static void Main()
	{
		//Object of class a
		a x;
		x=new a(); 
		x.display();
		x.k=100;
		System.Console.WriteLine(x.k);
	}
}