Retrieve all the groups from the site using client object model

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Client;
namespace ClientObjectModel
{
class Program
{
static void Main(string[] args)
{
// Retrieve all the groups from the site using client object model
string siteUrl = "http://serverName:1111/sites/SPSiteDataQuery/";
ClientContext context = new ClientContext(siteUrl);
GroupCollection groupColl = context.Web.SiteGroups;
context.Load(groupColl);
context.ExecuteQuery();
foreach (Group group in groupColl)
{
Console.WriteLine(group.Title + " " + group.Id);
}
Console.ReadLine();
}
}
}