using System;

public class Program

{

    public static void Main()

    {

    //  DateTime dt = Convert.ToDateTime(((DataRow)objRow)["dt"].ToString("MM/dd/yyyy hh:mm:ss.fff tt"));

        //Console.WriteLine(dt);

        DateTime d = DateTime.Now;

string str = String.Format("{0:00}{1:00}{2:0000}{3:00}{4:00}{5:00}{6:000}", d.Month, d.Day, d.Year, d.Hour, d.Minute, d.Second, d.Millisecond);

// I got this result: "02/23/2015 16:42:38.234"

        Random r = new Random();

int n = r.Next(10);

        //int card = rnd.Next(999);

        Console.WriteLine(n+"_"+str+"_W");

    }

}