diff --git a/Lesson_4/Task_2/FireMagic.cs b/Lesson_4/Task_2/Classes/FireMagic.cs
similarity index 62%
rename from Lesson_4/Task_2/FireMagic.cs
rename to Lesson_4/Task_2/Classes/FireMagic.cs
index 407f147..3026a2c 100644
--- a/Lesson_4/Task_2/FireMagic.cs
+++ b/Lesson_4/Task_2/Classes/FireMagic.cs
@@ -4,11 +4,13 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Open_Closed
+using Open_Closed.Interfaces;
+
+namespace Open_Closed.Classes
 {
-    public class FireMagic : Magic
+    public class FireMagic : IMagic
     {
-        public override void CountYourMagic() 
+        public void CountYourMagic() 
         {
             Console.WriteLine("Wow, your magic is fire magic!");
         }
diff --git a/Lesson_4/Task_2/Magic.cs b/Lesson_4/Task_2/Classes/UnknownMagic.cs
similarity index 60%
rename from Lesson_4/Task_2/Magic.cs
rename to Lesson_4/Task_2/Classes/UnknownMagic.cs
index 5b4d30c..f94bf1a 100644
--- a/Lesson_4/Task_2/Magic.cs
+++ b/Lesson_4/Task_2/Classes/UnknownMagic.cs
@@ -4,11 +4,13 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Open_Closed
+using Open_Closed.Interfaces;
+
+namespace Open_Closed.Classes
 {
-    public class Magic
+    public class UnknownMagic : IMagic
     {
-        public virtual void CountYourMagic() 
+        public void CountYourMagic() 
         {
             Console.WriteLine("I understand you...");
         }
diff --git a/Lesson_4/Task_2/WaterMagic.cs b/Lesson_4/Task_2/Classes/WaterMagic.cs
similarity index 64%
rename from Lesson_4/Task_2/WaterMagic.cs
rename to Lesson_4/Task_2/Classes/WaterMagic.cs
index 036d157..e37694a 100644
--- a/Lesson_4/Task_2/WaterMagic.cs
+++ b/Lesson_4/Task_2/Classes/WaterMagic.cs
@@ -4,11 +4,13 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Open_Closed
+using Open_Closed.Interfaces;
+
+namespace Open_Closed.Classes
 {
-    public class WaterMagic : Magic
+    public class WaterMagic : IMagic
     {
-        public override void CountYourMagic() 
+        public void CountYourMagic() 
         {
             Console.WriteLine("Incredible! You have 50 millions of power! It's water magic!");
         }
diff --git a/Lesson_4/Task_2/Interfaces/IMagic.cs b/Lesson_4/Task_2/Interfaces/IMagic.cs
new file mode 100644
index 0000000..6474543
--- /dev/null
+++ b/Lesson_4/Task_2/Interfaces/IMagic.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Open_Closed.Interfaces
+{
+    public interface IMagic
+    {
+        void CountYourMagic();
+    }
+}
diff --git a/Lesson_4/Task_2/Program.cs b/Lesson_4/Task_2/Program.cs
index 3751555..5cd1c52 100644
--- a/Lesson_4/Task_2/Program.cs
+++ b/Lesson_4/Task_2/Program.cs
@@ -1,2 +1,5 @@
-// See https://aka.ms/new-console-template for more information
-Console.WriteLine("Hello, World!");
+using Open_Closed.Classes;
+
+(new FireMagic()).CountYourMagic();
+(new WaterMagic()).CountYourMagic();
+(new UnknownMagic()).CountYourMagic();
diff --git a/Lesson_4/Task_2/Task_2.csproj b/Lesson_4/Task_2/Task_2.csproj
index f02677b..74abf5c 100644
--- a/Lesson_4/Task_2/Task_2.csproj
+++ b/Lesson_4/Task_2/Task_2.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>