diff --git a/src/main.py b/src/main.py
new file mode 100644
index 0000000..0a316b3
--- /dev/null
+++ b/src/main.py
@@ -0,0 +1,17 @@
+from models.home import Home
+
+
+def main():
+    home: Home = Home()
+    print(home)
+    home.sort_by_age()
+    print(f"\n{home}\n")
+    print(f"\n{home.pets[0].is_polite()}\n")
+    tuple_of_pets_for_friendship: tuple = (home.pets[1], home.pets[2], home.pets[3])
+    friends = home.pets[0].are_friends(*tuple_of_pets_for_friendship)
+    for pet in friends:
+        print(f"this is friend {pet.name}")
+
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file
diff --git a/src/models/home.py b/src/models/home.py
new file mode 100644
index 0000000..ce9c60a
--- /dev/null
+++ b/src/models/home.py
@@ -0,0 +1,27 @@
+from models.pet import Pet
+from models.kind import Kind
+
+class Home:
+    def __init__(self):
+        self.pets: list[Pet] = [
+            Pet("Buddy", Kind.DOG, "Golden Retriever", 2, "Hello, I'm Buddy!", 30.0),
+            Pet("Lucy", Kind.CAT, "Siamese", 1, "Hello, I'm Lucy!", 10.0),
+            Pet("Bella", Kind.BIRD, "Parrot", 3, "Hello, I'm Bella!", 0.5),
+            Pet("Nemo", Kind.FISH, "Clownfish", 1, "Hello, I'm Nemo!", 0.1)
+        ]
+
+
+    def adopt(self, pet: Pet) -> None:
+        self.pets.append(pet)
+
+
+    def __str__(self) -> str:
+        return "\n".join([str(pet) for pet in self.pets])
+
+
+
+    def sort_by_age(self) -> None:
+        for n in range(len(self.pets) - 1, 0, -1):
+            for i in range(n):
+                if self.pets[i].age > self.pets[i + 1].age:
+                    self.pets[i].age, self.pets[i + 1].age = self.pets[i + 1].age, self.pets[i].age
diff --git a/src/models/kind.py b/src/models/kind.py
new file mode 100644
index 0000000..b9aa1fd
--- /dev/null
+++ b/src/models/kind.py
@@ -0,0 +1,7 @@
+from enum import Enum
+
+class Kind(Enum):
+    DOG = "DOG"
+    CAT = "CAT"
+    BIRD = "BIRD"
+    FISH = "FISH"
\ No newline at end of file
diff --git a/src/models/pet.py b/src/models/pet.py
new file mode 100644
index 0000000..f13bb77
--- /dev/null
+++ b/src/models/pet.py
@@ -0,0 +1,30 @@
+from  models.kind import Kind
+
+
+class Pet:
+    def __init__(self, name: str, kind: Kind, breed: str, age: int, greeting: str, mass: float):
+        self.name:str = name
+        self.breed: str = breed
+        self.kind: Kind = kind
+        self.age:int = age
+        self.greeting: str = greeting
+        self.mass:float = mass
+
+
+    def are_friends(self, *other_pets) -> list:
+        friends: list[Pet] = []
+        for pet in other_pets:
+            if type(pet) is Pet and abs(self.age - pet.age) <= 2:
+                friends.append(pet)
+            else:
+                continue
+
+        return friends
+
+
+    def is_polite(self) -> bool:
+        return  "hello" in self.greeting.lower()
+
+
+    def __str__(self):
+        return f"{self.name} is a {self.kind} ({self.breed}) and is {self.age} years old. {self.greeting}"