{

  // ========================================================================
  // Verbosity level (0=quiet, 1=event level, 2=track level, 3=debug)
  Int_t iVerbose = 1;

  // Input file (MC events)

TString input="demo";

TString inFile = input; inFile.Append(".mc.root");
TString outFile = input; outFile.Append(".digi.root");
//  TString inFile = "data/pions.mc.root";
//TString inFile = "data/etacphiphi.mc.root";
//TString inFile = "$PANDAMC/FAIRRoot/lambdas.mc.root";
  // Output file
  //TString outFile = "$PANDAMC/FAIRRoot/lambdas.noDt.raw.root";
//TString outFile = "data/pions.raw.root";
  //TString outFile = "data/test.raw.root";

  
  // Parameter file
  TString parFile = input+".param.root";


  // ----  Load libraries   -------------------------------------------------
  gROOT->LoadMacro("$VMCWORKDIR/gconfig/basiclibs.C");
  basiclibs();
  gSystem->Load("libGeoBase");
  gSystem->Load("libParBase");
  gSystem->Load("libBase");
  gSystem->Load("libPndData");
  gSystem->Load("libField");
  gSystem->Load("libGen");
  gSystem->Load("libPassive");
  gSystem->Load("libtpc");
  gSystem->Load("libgenfit");
  // ------------------------------------------------------------------------


  // ---  Now choose concrete engines for the different tasks   -------------
  // ------------------------------------------------------------------------


  // In general, the following parts need not be touched
  // ========================================================================




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



  // -----   Digitization run   -------------------------------------------
  FairRunAna *fRun= new FairRunAna();
  fRun->SetInputFile(inFile);
  fRun->SetOutputFile(outFile);
  // ------------------------------------------------------------------------



  // -----  Parameter database   --------------------------------------------
  FairRuntimeDb* rtdb = fRun->GetRuntimeDb();
  FairParRootFileIo* parInput1 = new FairParRootFileIo(kTRUE);
  parInput1->open(parFile.Data());
  FairParAsciiFileIo* parInput2 = new FairParAsciiFileIo();
  TString tpcDigiFile = gSystem->Getenv("VMCWORKDIR");
  tpcDigiFile += "/tpc/tpc.TestChamber.par";
  parInput2->open(tpcDigiFile.Data(),"in");

  rtdb->setFirstInput(parInput2);
  rtdb->setSecondInput(parInput1);

  PndTpcDigiPar* par = (PndTpcDigiPar*) rtdb->getContainer("PndTpcDigiPar");
  par->setInputVersion(fRun->GetRunId(),1);
  par->setChanged(kTRUE);


  rtdb->setOutput(parInput1);
  rtdb->saveOutput();

  fRun->LoadGeometry();
  // ------------------------------------------------------------------------
  
//  GenfitTask *Genfit= new GenfitTask();
//  fRun->AddTask(Genfit);

// ----- PndTpc Event Mixer: Mixes background tracks to events -------------

    // -----    Digi Sequence  --------------------------------------------
  PndTpcClusterizerTask* tpcClusterizer = new PndTpcClusterizerTask();
  tpcClusterizer->SetPersistence();
  fRun->AddTask(tpcClusterizer);
 
  PndTpcDriftTask* tpcDrifter = new PndTpcDriftTask();
  tpcDrifter->SetPersistence();
  //tpcDrifter->SetTransverseDiffuse(true);
  //tpcDrifter->SetLongitudinalDiffuse(true);
  tpcDrifter->SetDistort(false);
  fRun->AddTask(tpcDrifter);

  PndTpcGemTask* tpcGem = new PndTpcGemTask();
  //tpcGem->SetGainFluctuations();
  tpcGem->SetPersistence();
  fRun->AddTask(tpcGem);


  PndTpcPadResponseTask* tpcPadResponse = new PndTpcPadResponseTask();
  tpcPadResponse->SetPersistence();
  fRun->AddTask(tpcPadResponse);


//PndTpcEvtMixTask* evtmixer = new PndTpcEvtMixTask();
//  evtmixer->SetBkgFileName("bkg2.raw.root");
//  evtmixer->SetNBkgEvts(500);
//  evtmixer->SetEvtRate(1E7);
//fRun->AddTask(evtmixer);

  PndTpcElectronicsTask* tpcElec = new PndTpcElectronicsTask();
  tpcElec->SetSamplePersistence();
  tpcElec->SetPersistence();
  fRun->AddTask(tpcElec);

  PndTpcTestChamberOutputTask* out = new PndTpcTestChamberOutputTask();
  out->SetOutfileName("dreggn2.root");
  fRun->AddTask(out);


  // -----   Intialise and run   --------------------------------------------
  fRun->Init();
  rtdb->print();

  fRun->Run(0,0); // process all events from input file
  // ------------------------------------------------------------------------
  out->writeToFile();
  //tpcDrifter->WriteHistograms();
//tpcGem->WriteHistograms();
//tpcPadResponse->WriteHistograms();
  // -----   Finish   -------------------------------------------------------


//delete tpcSplitter;

  rtdb->saveOutput();
  rtdb->print();


  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;
  // ------------------------------------------------------------------------


}