diff --git a/app/main.py b/app/main.py
index 8fbf3053..7987f90a 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1 +1,49 @@
-#  write your code here
+class Animal:
+    def __init__(
+            self, name: str,
+            appetite: int,
+            is_hungry: bool = True
+            ):
+        self.name = name
+        self.appetite = appetite
+        self.is_hungry = is_hungry
+
+    def print_name(self) -> str:
+        return f"Hello, I'm {self.name} "
+    
+    def feed(self) -> str | int:
+        if self.is_hungry == True:
+            self.is_hungry = not self.is_hungry
+            return f"Eating {self.appetite} food points..."
+        return 0
+
+
+class Cat(Animal):
+    def __init__(self, name, is_hungry = True):
+        super().__init__(
+            name,
+            appetite=3,
+            is_hungry=is_hungry
+            )
+
+    def catch_mouse(self) -> None:
+        print("The hunt began!")
+    
+class Dog(Animal):
+    def __init__(self, name, is_hungry = True):
+        super().__init__(
+            name,
+            appetite=7,
+            is_hungry=is_hungry
+            )
+
+    def bring_slippers(self) -> None:
+        print("The slippers delivered!")
+
+
+def feed_animals(animals: list) -> int:
+    digit = 0
+    for animal in animals:
+        if animal.is_hungry is True:
+          digit += animal.appetite
+    return digit