using System;

public class Program

{

    public static void Main()

    {

        var date = new DateTime(2015, 11, 11);

        var str = date.ToString("MMMM d, yyyy");

        str = "It's " + str + ", make a wish!";

        // str now contains: "It's November 11, 2015, make a wish!";

        Console.WriteLine(str);

    }

}