What will be the output of the below code segment?

class Program
{
static void Main(string[] args)
{
Console.Write(string.Join("", "http://www.dotnetfunda.com/articles/show/3165/calculator-application-using-ironjs-and-wpf-by-invoking-an-external-ja".ToCharArray().Where(Char.IsDigit)));
Console.ReadKey(true);
}
}