public static void Main()
Double Length,Width,Hight,Size;
Length=Double.Parse(Console.ReadLine());
Console.WriteLine("enter the length");
Width= Double.Parse(Console.ReadLine());
Console.WriteLine("enter the Width");
Hight= Double.Parse(Console.ReadLine());
Console.WriteLine("enter the Hight");
Size= Length*Width*Hight;
Console.WriteLine("the Size is {0}", Size);