using System;
//write onley
//csc property_set1.cs
public class clsPro
{
private double sp = 0;private double add = 0;
public clsPro() { Console.WriteLine("default constructor evoked");}
~clsPro() { Console.WriteLine("destructor evoked");}
public double SP
{
 set
    {
sp = value * 2;
add = value + value;
Console.WriteLine("Original value : "+ value);
Console.WriteLine("set value * 2 : "+ sp);
Console.WriteLine("set value + vaule : "+ add);
   }
}
}

class Test
{
public static void Main(string[] args)
{
Console.WriteLine("Using set Write Property : ");
Console.Write("Read some double data : ");
string str = Console.ReadLine();
double dd = double.Parse(str);
clsPro pr = new clsPro();
pr.SP = dd;
}
}