void run_offline3_rec(Int_t nEvents=2,  Float_t mom = 15,  UInt_t seed = 1 )
{
  // ========================================================================
  // Verbosity level (0=quiet, 1=event level, 2=track level, 3=debug)
  Int_t iVerbose = 0;

  // ----  Load libraries   -------------------------------------------------
  gROOT->LoadMacro("$VMCWORKDIR/gconfig/rootlogon.C");
  rootlogon();
  TString sysFile = gSystem->Getenv("VMCWORKDIR");
  // ------------------------------------------------------------------------
  // In general, the following parts need not be touched
  // ========================================================================

  // -----   Timer   --------------------------------------------------------
  TStopwatch timer;  

  timer.Start();
  // ------------------------------------------------------------------------

  // Input file  
  TString identifier;   
  identifier = Form("data_%d",seed);
TString base=identifier.Data();
 
   TString inDigiFile = base+"_dig.root";
  TString inSimFile  = base+"_sim.root";
  TString parFile    = base+"_par.root";
  TString outFile    = base+"_rec.root";
 



  // -----   Digitization run   -------------------------------------------
  FairRunAna *fRun= new FairRunAna();
  fRun->SetInputFile(inDigiFile);
  fRun->AddFriend(inSimFile);
  fRun->SetOutputFile(outFile);
  FairGeane *Geane = new FairGeane();
  fRun->AddTask(Geane);
  // ------------------------------------------------------------------------

  // -----  Parameter database   --------------------------------------------
  TString allDigiFile = sysFile+"/macro/params/all.par";

  FairRuntimeDb* rtdb = fRun->GetRuntimeDb();
  FairParRootFileIo* parInput1 = new FairParRootFileIo();
  parInput1->open(parFile.Data());
	
  FairParAsciiFileIo* parIo1 = new FairParAsciiFileIo();
  parIo1->open(allDigiFile.Data(),"in");
        
  rtdb->setFirstInput(parInput1);
  rtdb->setSecondInput(parIo1);
  // ------------------------------------------------------------------------
 
  PndMvdRiemannTrackFinderTask* mvdTrackFinder = new PndMvdRiemannTrackFinderTask();
  mvdTrackFinder->SetVerbose(iVerbose);
  mvdTrackFinder->SetMaxDist(0.05);
  mvdTrackFinder->SetPersistence(kFALSE);
  fRun->AddTask(mvdTrackFinder);




  // Unified Pattern Recognition 
  //==========================================
  //  use the constructor with input :
  //      printout flag (int) , plotting flag (bool), MC comparison flag (bool), SciTil.
  PndTrkTracking* tracking = new PndTrkTracking(0,false,false,false);
  tracking->SetInputBranchName("STTHit","MVDHitsPixel","MVDHitsStrip");
  // tracking->SetInputBranchName("STTHitMix","MVDHitsPixelMix","MVDHitsStripMix");
  //  don't do the Pattern Recognition second part, starting from the Mvd;
  tracking->NoMvdAloneTracking();
  // do Cleanup only when there is Mixing;
  // tracking->Cleanup();
  fRun->AddTask(tracking);
  
  PndSttMvdGemTracking * SttMvdGemTracking = new PndSttMvdGemTracking(0);
  //SttMvdGemTracking->SetPdgFromMC();
  fRun->AddTask(SttMvdGemTracking);
  
  PndMCTrackAssociator* trackMC = new PndMCTrackAssociator();
  trackMC->SetTrackInBranchName("SttMvdGemTrack");
  trackMC->SetTrackOutBranchName("SttMvdGemTrackID");
  fRun->AddTask(trackMC);

  PndRecoKalmanTask* recoKalman = new PndRecoKalmanTask();
  recoKalman->SetTrackInBranchName("SttMvdGemTrack");
  recoKalman->SetTrackInIDBranchName("SttMvdGemTrackID");
  recoKalman->SetTrackOutBranchName("SttMvdGemGenTrack");
  recoKalman->SetBusyCut(50); // CHECK to be tuned
  //recoKalman->SetIdealHyp(kTRUE);
  //recoKalman->SetNumIterations(3);
  fRun->AddTask(recoKalman);

  PndMCTrackAssociator* trackMC2 = new PndMCTrackAssociator();
  trackMC2->SetTrackInBranchName("SttMvdGemGenTrack"); 
  trackMC2->SetTrackOutBranchName("SttMvdGemGenTrackID");
  fRun->AddTask(trackMC2);
 
  PndFtsTrackerIdeal* trackFts = new PndFtsTrackerIdeal();
  trackFts->SetRelativeMomentumSmearing(0.05);
  trackFts->SetVertexSmearing(0.05, 0.05, 0.05);//@ offline2 that was 0.02!
  trackFts->SetTrackingEfficiency(1.);
  trackFts->SetTrackOutput("FtsIdealTrack");
  fRun->AddTask(trackFts);

  PndRecoKalmanTask* recoKalmanFwd = new PndRecoKalmanTask();
  recoKalmanFwd->SetTrackInBranchName("FtsIdealTrack");
  //recoKalmanFwd->SetTrackInIDBranchName("FtsIdealTrackID");
  recoKalmanFwd->SetTrackOutBranchName("FtsIdealGenTrack");
  recoKalmanFwd->SetBusyCut(50); // CHECK to be tuned
  //recoKalmanFwd->SetIdealHyp(kTRUE);
  //recoKalmanFwd->SetNumIterations(3);
  fRun->AddTask(recoKalmanFwd);

  PndMCTrackAssociator* trackMC3 = new PndMCTrackAssociator();
  trackMC3->SetTrackInBranchName("FtsIdealGenTrack");
  trackMC3->SetTrackOutBranchName("FtsIdealGenTrackID");
  fRun->AddTask(trackMC3);






  // -----   Intialise and run   --------------------------------------------
  PndEmcMapper::Init(1);
  fRun->Init();
  fRun->Run(0, nEvents);


  // ------------------------------------------------------------------------

  // -----   Finish   -------------------------------------------------------

  timer.Stop();
  Double_t rtime = timer.RealTime();
  Double_t ctime = timer.CpuTime();
  cout << endl << endl;
  cout << "Macro finished succesfully." << endl;
  cout << "Output file is "    << outFile << endl;
  cout << "Parameter file is " << parFile << endl;
  cout << "Real time " << rtime << " s, CPU time " << ctime << " s" << endl;
  cout << endl;
  // ------------------------------------------------------------------------


}