using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
 
namespace HostName
{
  public class Program
  {
    static void Main(string[] args)
    {
      String lComputerName = Dns.GetHostName();
      IPAddress[] localIPs = Dns.GetHostAddresses(lComputerName);
 
      if (localIPs.Length > 0)
        foreach (IPAddress lAddress in localIPs)
          Console.WriteLine(lAddress);
    }
  }
}