static void Main(string[] args)
{
Complex C1 = new Complex(1, 2);
Complex C2 = new Complex(3, 4);
Complex C3 = C1 + C2;
Console.WriteLine("C1={0}", C1);
Console.WriteLine("C2={0}", C2);
Console.WriteLine("C3={0}", C3);
Math mth = new Math();
Complex C4 = mth.Add(C2, C3);
Console.WriteLine("C4={0}", C4);
}
