diff --git a/subsystems/intt/INTTChipDrawer.cc b/subsystems/intt/INTTChipDrawer.cc
index c5e6339..aad3248 100644
--- a/subsystems/intt/INTTChipDrawer.cc
+++ b/subsystems/intt/INTTChipDrawer.cc
@@ -29,7 +29,11 @@
 INTTChipDrawer::INTTChipDrawer(std::string const& name)
   : SingleCanvasDrawer(name)
 {
-  histprefix = "h_InttClusterQA_"; 
+  histprefix = "h_InttClusterQA_";
+  file1 = TFile::Open("templete_file/physics_daq30_templete.root", "READ");
+  file2 = TFile::Open("templete_file/physics_daq35_templete.root", "READ");
+  hist1 = dynamic_cast<TH1F*>(file1->Get("hist_reference"));
+  hist2 = dynamic_cast<TH1F*>(file2->Get("hist_reference"));
 }
 
 INTTChipDrawer::~INTTChipDrawer()
@@ -98,6 +102,15 @@ int INTTChipDrawer::DrawCanvas()
     h_clusSize->SetYTitle("Normalized Entries");
     h_clusSize->Scale(1./h_clusSize->Integral());
     h_clusSize->DrawCopy();
+    if(cl->RunNumber()<49753){
+      hist1->SetMarkerStyle(0);
+      hist1->Draw("HIST E SAME");
+      hist1->SetLineColor(kRed);
+    }else{
+      hist2->SetMarkerStyle(0);
+      hist2->Draw("HIST E SAME");
+      hist2->SetLineColor(kRed); 
+    }
     gPad->SetRightMargin(0.15);
   }
   else
@@ -113,7 +126,7 @@ int INTTChipDrawer::DrawCanvas()
   PrintRun.SetTextAlign(23); // center/top alignment
   std::ostringstream runnostream1;
   std::string runstring1;
-  // runnostream1 << Name() << "_intt Info Run " << cl->RunNumber();
+  //runnostream1 << Name() << "_intt Info Run " << cl->RunNumber();
   runnostream1 << "INTTQA_intt Info Run " << cl->RunNumber();
   runstring1 = runnostream1.str();
   transparent->cd();
diff --git a/subsystems/intt/INTTChipDrawer.h b/subsystems/intt/INTTChipDrawer.h
index 33cb0c8..204cbef 100644
--- a/subsystems/intt/INTTChipDrawer.h
+++ b/subsystems/intt/INTTChipDrawer.h
@@ -2,6 +2,8 @@
 #define INTT_CHIP_DRAWER_H
 
 #include <qahtml/SingleCanvasDrawer.h>
+#include <TFile.h>
+#include<TH1F.h>
 
 class TPad;
 
@@ -23,6 +25,11 @@ class INTTChipDrawer : public SingleCanvasDrawer
   TPad *transparent{nullptr};
   TPad *Pad[4]{nullptr};
   const char* histprefix;
+
+  TFile* file1;
+  TFile* file2;
+  TH1F* hist1;
+  TH1F* hist2;
 };
 
 #endif//INTT_CHIP_DRAWER_H