diff --git a/histogram.cpp b/histogram.cpp
index a166b3c..51b6553 100644
--- a/histogram.cpp
+++ b/histogram.cpp
@@ -2,7 +2,7 @@
 #include "histogram_internal.h"
 using namespace std;
 
-/*
+
 vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) {
 
     vector<size_t> bins(bin_count);
@@ -43,7 +43,7 @@ vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) {
         }
     }
     return bins;
-} */
+} 
 
 bool find_minmax(const vector<double>& numbers, double& min, double& max) {
     if (numbers.size() == 0) {
diff --git a/histogram.h b/histogram.h
index 63346a6..928d4e4 100644
--- a/histogram.h
+++ b/histogram.h
@@ -2,6 +2,5 @@
 
 #include <vector>
 
-std::vector<size_t>
-make_histogram(const std::vector<double>& numbers, size_t bin_count);
+std::vector<size_t> make_histogram(const std::vector<double>& numbers, size_t bin_count);
 void find_minmax(const  std::vector<double>& numbers, double& min, double& max);
\ No newline at end of file
diff --git a/lab1.cpp b/lab1.cpp
index cb54131..fc7e837 100644
--- a/lab1.cpp
+++ b/lab1.cpp
@@ -1,11 +1,11 @@
-// lab1.cpp : Этот файл содержит функцию "main". Здесь начинается и заканчивается выполнение программы.
-//
+
 
 #include <iostream>
 #include <vector>
 #include <cmath>
 #include "histogram.h"
 #include "text.h"
+#include "svg.h"
 
 using namespace std;
 
@@ -40,7 +40,7 @@ int main()
 {   
     Input in = input_data();
     auto bins = make_histogram(in.numbers, in.bin_count);
-    show_histogram_text(bins, in.bin_count);
-
+    //show_histogram_text(bins, in.bin_count);
+    show_histogram_svg(bins);
 
     }
\ No newline at end of file
diff --git a/lab1.sln b/lab1.sln
index cc79963..379a52d 100644
--- a/lab1.sln
+++ b/lab1.sln
@@ -3,7 +3,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.3.32922.545
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lab1", "lab1\lab1.vcxproj", "{E29B0ECE-B766-48CE-A826-ACFB8EFF2990}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "lab1", "lab1.vcxproj", "{E29B0ECE-B766-48CE-A826-ACFB8EFF2990}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -26,6 +26,6 @@ Global
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
-		SolutionGuid = {2E4B7C6A-7457-47BC-985A-B37A534B97DD}
+		SolutionGuid = {5DF3BD0D-8660-486C-B0A4-A7F22876A15B}
 	EndGlobalSection
 EndGlobal
diff --git a/lab1.vcxproj b/lab1.vcxproj
index ce5422b..b0e1a63 100644
--- a/lab1.vcxproj
+++ b/lab1.vcxproj
@@ -129,11 +129,12 @@
   <ItemGroup>
     <ClCompile Include="histogram.cpp" />
     <ClCompile Include="lab1.cpp" />
+    <ClCompile Include="svg.cpp" />
     <ClCompile Include="text.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="histogram.h" />
-    <ClInclude Include="histogram_internal.h" />
+    <ClInclude Include="svg.h" />
     <ClInclude Include="text.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
diff --git a/lab1.vcxproj.filters b/lab1.vcxproj.filters
index 7e1d14f..d566c7c 100644
--- a/lab1.vcxproj.filters
+++ b/lab1.vcxproj.filters
@@ -24,6 +24,9 @@
     <ClCompile Include="text.cpp">
       <Filter>Исходные файлы</Filter>
     </ClCompile>
+    <ClCompile Include="svg.cpp">
+      <Filter>Исходные файлы</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="histogram.h">
@@ -32,7 +35,7 @@
     <ClInclude Include="text.h">
       <Filter>Исходные файлы</Filter>
     </ClInclude>
-    <ClInclude Include="histogram_internal.h">
+    <ClInclude Include="svg.h">
       <Filter>Исходные файлы</Filter>
     </ClInclude>
   </ItemGroup>
diff --git a/marks.svg b/marks.svg
new file mode 100644
index 0000000..e69de29
diff --git a/marks.txt b/marks.txt
new file mode 100644
index 0000000..2cdb9aa
--- /dev/null
+++ b/marks.txt
@@ -0,0 +1,3 @@
+10
+3 3 4 4 4 4 4 5 5 5
+3
diff --git a/svg.cpp b/svg.cpp
new file mode 100644
index 0000000..ebef607
--- /dev/null
+++ b/svg.cpp
@@ -0,0 +1,25 @@
+#include <iostream>
+#include "svg.h"
+
+using namespace std;
+
+void
+svg_begin(double width, double height) {
+    cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
+    cout << "<svg ";
+    cout << "width='" << width << "' ";
+    cout << "height='" << height << "' ";
+    cout << "viewBox='0 0 " << width << " " << height << "' ";
+    cout << "xmlns='http://www.w3.org/2000/svg'>\n";
+}
+
+void
+svg_end() {
+    cout << "</svg>\n";
+}
+
+
+void show_histogram_svg(const vector<size_t>& bins) {
+    svg_begin(400, 300);
+    svg_end();
+}
diff --git a/svg.h b/svg.h
new file mode 100644
index 0000000..538bd01
--- /dev/null
+++ b/svg.h
@@ -0,0 +1,7 @@
+#pragma once
+
+#include <vector>
+
+void svg_begin(double width, double height);
+void svg_end();
+void show_histogram_svg(const std::vector<size_t>& bins);
\ No newline at end of file