{
   gROOT->Reset();
   TFile f("hsimple.root");
   TCanvas *c1 = new TCanvas("c1","c1",10,10,800,500);
   c1->Divide(2,1);
   c1->cd(1);
   hpxpy->Draw();
   gPad->AddExec("ex2",".x bugnt.C");
}