{
  TCanvas *c1 = new TCanvas("c1","",900,500);
  gStyle->SetCanvasColor(0);
  gStyle->SetTitleFillColor(0);
  gStyle->SetTitleBorderSize(0);
  gStyle->SetStatColor(0);
  c1->SetBorderMode(0);
  c1->SetFillColor(0);
  c1->GetFrame()->SetFillColor(0);
  c1->GetFrame()->SetBorderMode(0);
  c1->Modified();
  c1->Update();
  c1->SetGridy();

 


  const double CMS_tot = 21;
  const double Err_tot = 4;
  const double CMS_cut = 23;
  const double Err_cut = 3;

  const double FWD_tot = 22.4;
  const double ErrFwd_tot = 2.3;

  const double ATLAS_tot = 25.1;
  const double ErrA_tot = 3.2;
  const double ATLAS_cut = 25.6;
  const double ErrA_cut = 2.3;

  const double ALICE_tot = 20.1;
  const double ALICE_cut = 22.2;
  const double ALICEErr_tot = 2.3;
  const double ALICEErr_cut = 2.3;


  double xT[4]={1, 2, 3, 4};
  double exT[4]  = {0};
  double xC[3] = {1.1, 2.1, 4.1};
  double exC[3] = {0};
  double yT[4]  = {CMS_tot, ATLAS_tot,  FWD_tot, ALICE_tot};
  double eyT[4] = {Err_tot, ErrA_tot,  ErrFwd_tot, ALICEErr_tot};
  double yC[3]  = {CMS_cut, ATLAS_cut, ALICE_cut};
  double eyC[3] = {Err_cut, ErrA_cut, ALICEErr_cut};

  TGraphErrors *grT = new TGraphErrors(4, xT, yT, exT, eyT);
  TGraphErrors *grC = new TGraphErrors(3, xC, yC, exC, eyC);


  //  TGraphErrors *gr2 = new TGraphErrors(2,x2,y2,ex2,ey2);
  grT->SetTitle("");
  grT->GetXaxis()->SetRangeUser(0,6);
  grT->GetYaxis()->SetTitle("No. of Squirrels in Azerbaijan.");

  grT->SetMarkerColor(2);   grC->SetMarkerColor(9);
  grT->SetMarkerStyle(20);  grC->SetMarkerStyle(24);
  grT->SetMarkerSize(1.2);  grC->SetMarkerSize(1.2);
  grT->SetLineColor(2);  grC->SetLineColor(9);
  grT->SetLineWidth(2);  grC->SetLineWidth(2);

  grT->GetXaxis()->SetBinLabel(grT->GetXaxis()->FindBin(1), "Exp1 All");
  grC->GetXaxis()->SetBinLabel(grC->GetXaxis()->FindBin(1.1), "Exp1 cut");
  grT->GetXaxis()->SetBinLabel(grT->GetXaxis()->FindBin(2), "Exp2 All");
  grC->GetXaxis()->SetBinLabel(grC->GetXaxis()->FindBin(2.1) ,"Exp2 Cut");
  grT->GetXaxis()->SetBinLabel(grT->GetXaxis()->FindBin(3), "Exp3 All");
  grT->GetXaxis()->SetBinLabel(grT->GetXaxis()->FindBin(4), "Exp4 Full");
  grC->GetXaxis()->SetBinLabel(grC->GetXaxis()->FindBin(4.1) ,"Exp4 Cut");

  grT->GetXaxis()->LabelsOption("h");
  grC->GetXaxis()->LabelsOption("h");
  grT->GetXaxis()->SetLabelColor(2);
  grC->GetXaxis()->SetLabelColor(9);

  grT->Draw("AP");    grC->Draw("PSame"); 
  axis->Draw();



}