public static void Main(string[] args)
{
Console.WriteLine("{0}", _Add <double>(3, 4));
Console.WriteLine("{0}", _Sub <double, int>(3.3, 4));
////////////////////////////////
Appending <double> appending = new Appending <double>();
appending._Append(10);
appending._Append(20);
appending._Append(30);
appending._Append(40);
appending._Print();
}
