using System ;
class ConstantSample 
{
	public static void Main ()
	{
  		contantvalue objcontantvalue=new contantvalue(10);
		
		int S=objcontantvalue.k;		
		Console.WriteLine(S); 
	} 
} 
class contantvalue
{
	public const int i=10 ;       //constant initialization
	public readonly int k=i;     //readOnly initialization		
	public contantvalue(int Kchange )
	{ 
		k=k+Kchange; //readOnly initialization in constructor
	}
}