{
   gStyle->SetEndErrorSize(20);
   gStyle->SetHatchesLineWidth(4);

   auto graphs = new TMultiGraph();
   auto canvas = new TCanvas();

   auto graph = new TGraphErrors();
   graph->SetPoint(0,3,2);
   graph->SetPointError(0,0,1);
//   graph->SetLineWidth(4);
   graphs->Add(graph, "p");

   auto graph2 = new TGraphErrors();
   graph2->SetPoint(0,4,2);
   graph2->SetPointError(0,0,1);
   graph2->SetPoint(1,5,2);
   graph2->SetPointError(1,0,1);
   graph2->SetFillStyle(3490);
   graph2->SetFillColor(kRed);
   graphs->Add(graph2, "3");

   graphs->Draw("A");

   auto axisX = graphs->GetXaxis();
   auto axisY = graphs->GetYaxis();
   axisX->SetLimits(2.5,5.5);
   axisX->SetLabelSize(0.05);
   axisY->SetLabelSize(0.05);

   canvas->Modified();
   canvas->Update();
//   canvas->SaveAs("test.png");
   canvas->SaveAs("test.C");
}