diff --git a/HNS/27.08.2023/Circle.py b/HNS/Excercises/27.08.2023/Circle.py
similarity index 100%
rename from HNS/27.08.2023/Circle.py
rename to HNS/Excercises/27.08.2023/Circle.py
diff --git a/HNS/27.08.2023/Rectangle.py b/HNS/Excercises/27.08.2023/Rectangle.py
similarity index 100%
rename from HNS/27.08.2023/Rectangle.py
rename to HNS/Excercises/27.08.2023/Rectangle.py
diff --git a/HNS/Excercises/27.08.2023/Shape.py b/HNS/Excercises/27.08.2023/Shape.py
new file mode 100644
index 0000000..8990f48
--- /dev/null
+++ b/HNS/Excercises/27.08.2023/Shape.py
@@ -0,0 +1,23 @@
+import math
+from abc import abstractmethod
+
+
+class Shape:
+    color = ''
+
+    @abstractmethod
+    def area(self):
+        pass
+
+    @abstractmethod
+    def perimeter(self):
+        pass
+
+    @staticmethod
+    def convert_to_json(obj):
+        if isinstance(obj, Shape):
+            result = obj.__dict__
+            result['type'] = obj.__class__.__name__
+            result['color'] = obj.color
+            return result
+
diff --git a/HNS/Excercises/27.08.2023/Shapes zwei.json b/HNS/Excercises/27.08.2023/Shapes zwei.json
new file mode 100644
index 0000000..92be808
--- /dev/null
+++ b/HNS/Excercises/27.08.2023/Shapes zwei.json	
@@ -0,0 +1 @@
+"{'shapes': [{\"width\": 5, \"height\": 10, \"color\": \"red\", \"type\": \"Rectangle\"}, {\"radius\": 7, \"color\": \"blue\", \"type\": \"Circle\"}, {\"side\": 4, \"color\": \"green\", \"type\": \"Square\"}]}"
\ No newline at end of file
diff --git a/HNS/Excercises/27.08.2023/Shapes zwei.json.json b/HNS/Excercises/27.08.2023/Shapes zwei.json.json
new file mode 100644
index 0000000..e69de29
diff --git a/HNS/27.08.2023/Square.py b/HNS/Excercises/27.08.2023/Square.py
similarity index 100%
rename from HNS/27.08.2023/Square.py
rename to HNS/Excercises/27.08.2023/Square.py
diff --git a/HNS/27.08.2023/classes.py b/HNS/Excercises/27.08.2023/classes.py
similarity index 100%
rename from HNS/27.08.2023/classes.py
rename to HNS/Excercises/27.08.2023/classes.py
diff --git a/HNS/27.08.2023/main.py b/HNS/Excercises/27.08.2023/main.py
similarity index 100%
rename from HNS/27.08.2023/main.py
rename to HNS/Excercises/27.08.2023/main.py
diff --git a/HNS/27.08.2023/shapes.json b/HNS/Excercises/27.08.2023/shapes.json
similarity index 100%
rename from HNS/27.08.2023/shapes.json
rename to HNS/Excercises/27.08.2023/shapes.json