static void Main()
{
MathProxy proxy = new MathProxy();
Console.WriteLine("657890 Cop to Dollars = " + proxy.Dol(657890));
Console.WriteLine("657890 Cop to Euro = " + proxy.Euro(657890));
Console.WriteLine("657890 Cop to Yen = " + proxy.Yen(657890));
Console.WriteLine("657890 Cop to Rupee = " + proxy.Rupee(657890));
Console.ReadKey();
}
