void gop(int aclic=1)
{
   gROOT->ProcessLine(".L makeChainhttp.C");
   TChain *chain = makeChain();
   TProof *proof = TProof::Open("");
   //Le packet size sera alors nentries / (frac * nWorkers)
   Long_t frac = 10;
   gProof->SetParameter("PROOF_PacketAsAFraction", frac);
   chain->SetProof();
   //Long64_t evtmax = chain->GetEntries();
   Long64_t evtmax=2619000;
   gROOT->Time();
   if (aclic)
      chain->Process("TSelector_Ntuple_Zee.C+","",evtmax);
   else
      chain->Process("TSelector_Ntuple_Zee.C", "",evtmax);
}