diff --git a/src/CircleCircumference.java b/src/CircleCircumference.java
new file mode 100644
index 0000000..e9fb7f0
--- /dev/null
+++ b/src/CircleCircumference.java
@@ -0,0 +1,11 @@
+
+public class CircleCircumference implements ISubscriber {
+
+	@Override
+	public void notifySubscriber(String input) {
+		// TODO Auto-generated method stub
+		double r=Double.parseDouble(input);
+		System.out.println("circle circumference = "+(2*3.14*r));
+	}
+
+}
diff --git a/src/LucasSeries.java b/src/LucasSeries.java
new file mode 100644
index 0000000..1a968cf
--- /dev/null
+++ b/src/LucasSeries.java
@@ -0,0 +1,17 @@
+public class LucasSeries implements ISubscriber {
+    public static int lucas_series(int number) { 
+        if (number == 0) 
+            return 2; 
+        if (number == 1) 
+            return 1; 
+        return lucas_series(number - 1) + lucas_series(number - 2); 
+    } 
+
+    @Override
+    public void notifySubscriber(String input) {
+       int Lenght = Integer.parseInt(input);
+       System.out.println("Hello, I am really a simple Lucas series and I am notified with " + input);
+       System.out.println("LUcas Number Is : "+lucas_series(Lenght));
+    }
+    
+}
diff --git a/src/Main.java b/src/Main.java
deleted file mode 100644
index 9b8c2b0..0000000
--- a/src/Main.java
+++ /dev/null
@@ -1,17 +0,0 @@
-import java.util.Scanner;
-
-public class Main {
-	private static ISubscriber subscribers [] = {
-			new SimpleSubscriber(),
-			new ReallySimpleSubscriber(),
-	};
-	public static void main(String[] args) {
-		Topic mathTopic = new Topic();
-		for (ISubscriber sub : subscribers) {
-			mathTopic.addSubscriber(sub);
-		}
-		Scanner sc = new Scanner(System.in);
-		String input = sc.next();
-		mathTopic.dispatchEvent(input);
-	}
-}
diff --git a/src/SphereCircumference.java b/src/SphereCircumference.java
new file mode 100644
index 0000000..8304e05
--- /dev/null
+++ b/src/SphereCircumference.java
@@ -0,0 +1,8 @@
+
+public class SphereCircumference implements ISubscriber {
+	
+	 public void notifySubscriber(String input) {
+	        double R = Double.parseDouble(input);
+	        System.out.println("Sphere Circumference is  = " + (2*3.14*R));
+}
+}
diff --git a/src/Spherearea.java b/src/Spherearea.java
new file mode 100644
index 0000000..178381c
--- /dev/null
+++ b/src/Spherearea.java
@@ -0,0 +1,14 @@
+package myPackage;
+
+public class Spherearea implements ISubscriber{
+	
+	@Override
+    public void notifySubscriber(String input) {
+        double radius = Double.parseDouble(input);
+        String result = String.valueOf(4*3.14*radius*radius);
+        System.out.println("Sphere area = " + result);
+    }
+}
+
+
+  
\ No newline at end of file