S

using System;

using Microsoft.SharePoint;

namespace Test

{

   class ConsoleApp

   {

      static void Main(string[] args)

      {

         using (SPSite site = new SPSite("http://localhost"))

         {

            using (SPWeb web = site.OpenWeb())

            {

               SPListCollection lists = web.GetListsOfType(SPBaseType.DocumentLibrary);

               foreach (SPList list in lists)

               {

                  Console.WriteLine(list.Title);

               }

            }

         }

         Console.ReadLine();

      }

   }

}