diff --git a/main.py b/main.py
index d80bdbc..7619f6c 100644
--- a/main.py
+++ b/main.py
@@ -1,3 +1,13 @@
 class Shape:
     def area(self):
-        return 0
\ No newline at end of file
+        return 0
+class Circle(Shape):
+    def __init__(self,r):
+        self.r = r
+    def area(self):
+        return (3.14*self.r*self.r)
+class Square(Shape):
+    def __init__(self,side):
+        self.side = side
+    def area(self):
+        return (self.side*self.side)