using System;
using System.Net;
using System.Net.Sockets;
using System.Text;

public class UDPMulticastSender {

    private IPAddress GroupAddress;
    private int GroupPort = 11000;
    
    private void Send(String ip, String port, String message) {
    	 
        GroupAddress = IPAddress.Parse(ip);
        UdpClient sender = new UdpClient();
        GroupPort = int.Parse(port);
        IPEndPoint groupEP = new IPEndPoint(GroupAddress, GroupPort);

        try {
            Console.WriteLine("Sending datagram to {1}:{2} '{0}'", message, ip, port);
            byte[] bytes = Encoding.ASCII.GetBytes(message);

            sender.Send(bytes, bytes.Length, groupEP);
            
            sender.Close();
            
        } catch (Exception e) {
            Console.WriteLine(e.ToString());
        }
        
    }

    public static int Main(String[] args) {
    	UDPMulticastSender sender = new UDPMulticastSender();
    	sender.Send(args[0], args[1], args[2]);

        return 0;
    }
}