using System;

public class Program

{

    public static void Main()

    {

    double num_1,number2,d,p,sum;

    Console.WriteLine("Enter the first number");    

    num_1=double.Parse(Console.ReadLine());

    Console.WriteLine("ادخل العدد الثاني");

    number2=double.Parse(Console.ReadLine());

    d=num_1-number2;

    p=num_1*number2;

    sum=num_1+number2;  

    Console.WriteLine("the d is {0:f4} and the p is {1} the sum : {2}",d,p,sum);

​

    }

}