public static void Main ()
string value1 = ("x equals " + result);
string value2 = ("y equals " + result);
string value3 = ("d equals " + result);
string value4 = ("f equals " + result);
Console.WriteLine ("++++++++++++++++++++++++++++++++++++");
Console.WriteLine ("{0}",
Console.WriteLine ("{0}",
Console.WriteLine ("{0}",
Console.WriteLine ("{0}",
Console.WriteLine ("++++++++++++++++++++++++++++++++++++");