Problem in Dynamic CAML in SharePoint 2013 server

Hi Folks,

 I need to select specific IDs from a Workflow Tasks in SharePoint. I madedynamic CAML query and created a console application and this is the code: 

using Microsoft.SharePoint;
using Microsoft.SharePoint.Utilities;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleAppCAML_Test
{
    class Program
    {
        static void Main(string[] args)
        {

            //make changes based on your site url
            string siteurl = "http://intranet.contoso.com/";
            using (SPSite site = new SPSite(siteurl))
            {
                using (SPWeb web = site.OpenWeb() ) {

                    SPList listWF = web.Lists.TryGetList("Workflow Tasks");


                    SPQuery queryAll = new SPQuery();
                    queryAll.Query = "<view><Query /></view>";

                    SPListItemCollection collListItems = listWF.GetItems(queryAll);

                    Console.WriteLine("---------------------GET ALL LIST ITEMS---------------------------------" + "\n\r");


                    foreach (SPListItem oListItem in collListItems)
                    {
                        Console.Write(SPEncode.HtmlEncode(oListItem["Title"].ToString()) + " :  " + SPEncode.HtmlEncode(oListItem["ID"].ToString() + "\n\r "));
                    }



                    Console.WriteLine("---------------------GET SOME LIST ITEMS---------------------------------" + "\n\r");


                    SPQuery querySelected = new SPQuery();


                    // Get selectedValues
                    string selectedValues = "5, 8";
                    string queryMainFirst = "";
                    string queryFilter = "";
                    string queryMainLast = "";


                    string[] values = selectedValues.Split(',');
                    for (int i = 0; i < values.Length; i++)
                    {
                        values[i] = values[i].Trim();
                        queryMainFirst = "<Where><Or>";
                        queryMainLast = "</Or></Where>";
                        queryFilter += "<Eq><FieldRef Name='ID' /><Value Type='Counter'>" + values[i].Trim() + "</Value></Eq>";

                    }

                    //WORKS FINE but IT IS HARD CODED Values
                    querySelected.Query = "<Where><Or><Eq><FieldRef Name='ID' /><Value Type='Counter'>5</Value></Eq><Eq><FieldRef Name='ID' /><Value Type='Counter'>8</Value></Eq></Or></Where>";
                    SPListItemCollection querySelectedItemColl = listWF.GetItems(querySelected);
                    Console.WriteLine("Hard Coded CAML, Items in list: " + querySelectedItemColl.Count);

                    /////HARD CODED Values
                    foreach (SPListItem item in querySelectedItemColl)
                    {
                        Console.WriteLine(" ID is: " + item["ID"].ToString());
                    }


                    //TRIED TO MAKE CAMLE QUERY Dynamic
                    string finalQuery = queryMainFirst + queryFilter + queryMainLast;

                    // THESE below TWO Statements both the strings Hard coded and Dynamic are EXACTLY same.
                    SPQuery queryDynamic = new SPQuery();
                    queryDynamic.Query = finalQuery;

                    SPListItemCollection itemsColl = listWF.GetItems(finalQuery);
                    Console.WriteLine("Dynamic CAML, Items in list: " + itemsColl.Count);

                    foreach (SPListItem item in itemsColl)
                    {
                        Console.WriteLine("ID is: " + item["ID"].ToString());
                    }
                }
            }
            Console.ReadKey();
        }
    }
}

Basically I need to dynamically select the tasks which users have selected and pass it CAML query. This the code for Console application, both of Hard Coded Values and Dynamic values in CAML in the list.



For the Hard Coded values/filters I am exact results for selected IDs.
However, for the Dynamic values/filters I am getting all the entries in the in the list as follows:



I don’t know what is the issue.

Any pointer would be greatly appreciated.
Thank you.   

Sandy