diff --git a/.gitignore b/.gitignore
index 3c3629e6..59cc0d26 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
 node_modules
+/.venv
+implement-cowsay/.venv/
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 00000000..3a650214
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,4 @@
+{
+  "python.analysis.typeCheckingMode": "basic",
+  "python.analysis.autoImportCompletions": true
+}
diff --git a/sprint5-prep/prep2-exercise.py b/sprint5-prep/prep2-exercise.py
new file mode 100644
index 00000000..885099af
--- /dev/null
+++ b/sprint5-prep/prep2-exercise.py
@@ -0,0 +1,33 @@
+def open_account(balances: dict[str, int], name: str, amount: int) -> None:
+    balances[name] = amount
+
+
+def sum_balances(accounts: dict[str, int]) -> int:
+    total = 0
+    for name, pence in accounts.items():
+        print(f"{name} had balance {pence}")
+        total += pence
+    return total
+
+
+def format_pence_as_string(total_pence: int) -> str:
+    if total_pence < 100:
+        return f"{total_pence}p"
+    pounds = int(total_pence / 100)
+    pence = total_pence % 100
+    return f"£{pounds}.{pence:02d}"
+
+
+balances = {
+    "Sima": 700,
+    "Linn": 545,
+    "Georg": 831,
+}
+
+open_account(balances, "Tobi", 913)
+open_account(balances, "Olya", 713)
+
+total_pence = sum_balances(balances)
+total_string = format_pence_as_string(total_pence)
+
+print(f"The bank accounts total {total_string}")
diff --git a/sprint5-prep/prep3-exercise.py b/sprint5-prep/prep3-exercise.py
new file mode 100644
index 00000000..9a72025e
--- /dev/null
+++ b/sprint5-prep/prep3-exercise.py
@@ -0,0 +1,27 @@
+class Person:
+    def __init__(self, name: str, age: int, preferred_operating_system: str):
+        self.name = name
+        self.age = age
+        self.preferred_operating_system = preferred_operating_system
+
+
+imran = Person("Imran", 22, "Ubuntu")
+print(imran.name)
+
+
+eliza = Person("Eliza", 34, "Arch Linux")
+print(eliza.name)
+
+
+def is_adult(person: Person) -> bool:
+    return person.age >= 18
+
+
+print(is_adult(imran))
+
+
+def is_from_UK(person: Person) -> bool:
+    return person.country == "UK"
+
+
+print(is_from_UK(eliza))
diff --git a/sprint5-prep/prep4-exercise.py b/sprint5-prep/prep4-exercise.py
new file mode 100644
index 00000000..51f2ee32
--- /dev/null
+++ b/sprint5-prep/prep4-exercise.py
@@ -0,0 +1,22 @@
+import datetime
+
+
+class Person:
+    def __init__(
+        self, name: str, date_of_birth: datetime.date, preferred_operating_system: str
+    ):
+        self.name = name
+        self.date_of_birth = date_of_birth
+        self.preferred_operating_system = preferred_operating_system
+
+    def is_adult(self):
+        today = datetime.date.today()
+        age = today.year - self.date_of_birth.year
+        print(age)
+        return age >= 18
+
+
+imran = Person("Imran", datetime.date(1998, 4, 3), "Ubuntu")
+print(imran.is_adult())
+eliza = Person("Eliza", datetime.date(2013, 3, 17), "Arch Linux")
+print(eliza.is_adult())
diff --git a/sprint5-prep/prep5-exercise.py b/sprint5-prep/prep5-exercise.py
new file mode 100644
index 00000000..3766edeb
--- /dev/null
+++ b/sprint5-prep/prep5-exercise.py
@@ -0,0 +1,24 @@
+from dataclasses import dataclass
+import datetime
+
+
+@dataclass(frozen=True)
+class Person:
+    name: str
+    date_of_birth: datetime.date
+    preferred_operating_system: str
+
+    def is_adult(self) -> bool:
+        today = datetime.date.today()
+        age = today.year - self.date_of_birth.year
+        if (today.month, today.day) < (
+            self.date_of_birth.month,
+            self.date_of_birth.day,
+        ):
+            age -= 1
+        return age >= 18
+
+
+imran = Person("Imran", datetime.date(2007, 12, 16), "Ubuntu")
+print(imran)
+print(imran.is_adult())
diff --git a/sprint5-prep/prep6-exercise.py b/sprint5-prep/prep6-exercise.py
new file mode 100644
index 00000000..ea02d922
--- /dev/null
+++ b/sprint5-prep/prep6-exercise.py
@@ -0,0 +1,24 @@
+from dataclasses import dataclass
+from typing import List
+
+
+@dataclass(frozen=True)
+class Person:
+    name: str
+    age: int
+    children: List["Person"]
+
+
+fatma = Person(name="Fatma", age=8, children=[])
+aisha = Person(name="Aisha", age=12, children=[])
+
+imran = Person(name="Imran", age=40, children=[fatma, aisha])
+
+
+def print_family_tree(person: Person) -> None:
+    print(person.name)
+    for child in person.children:
+        print(f"- {child.name} ({child.age})")
+
+
+print_family_tree(imran)
diff --git a/sprint5-prep/prep7-exercise.py b/sprint5-prep/prep7-exercise.py
new file mode 100644
index 00000000..7645f71c
--- /dev/null
+++ b/sprint5-prep/prep7-exercise.py
@@ -0,0 +1,67 @@
+from dataclasses import dataclass
+from typing import List
+
+
+@dataclass(frozen=True)
+class Person:
+    name: str
+    age: int
+    preferred_operating_systems: List[str]
+
+
+@dataclass(frozen=True)
+class Laptop:
+    id: int
+    manufacturer: str
+    model: str
+    screen_size_in_inches: float
+    operating_system: str
+
+
+def find_possible_laptops(laptops: List[Laptop], person: Person) -> List[Laptop]:
+    possible_laptops = []
+    for laptop in laptops:
+        if laptop.operating_system in person.preferred_operating_systems:
+            possible_laptops.append(laptop)
+    return possible_laptops
+
+
+people = [
+    Person(name="Imran", age=22, preferred_operating_systems=["Ubuntu"]),
+    Person(name="Eliza", age=34, preferred_operating_systems=["Arch Linux"]),
+]
+
+laptops = [
+    Laptop(
+        id=1,
+        manufacturer="Dell",
+        model="XPS",
+        screen_size_in_inches=13,
+        operating_system="Arch Linux",
+    ),
+    Laptop(
+        id=2,
+        manufacturer="Dell",
+        model="XPS",
+        screen_size_in_inches=15,
+        operating_system="Ubuntu",
+    ),
+    Laptop(
+        id=3,
+        manufacturer="Dell",
+        model="XPS",
+        screen_size_in_inches=15,
+        operating_system="ubuntu",
+    ),
+    Laptop(
+        id=4,
+        manufacturer="Apple",
+        model="macBook",
+        screen_size_in_inches=13,
+        operating_system="macOS",
+    ),
+]
+
+for person in people:
+    possible_laptops = find_possible_laptops(laptops, person)
+    print(f"Possible laptops for {person.name}: {possible_laptops}")
diff --git a/sprint5-prep/prep8-exercise.py b/sprint5-prep/prep8-exercise.py
new file mode 100644
index 00000000..144b0e9e
--- /dev/null
+++ b/sprint5-prep/prep8-exercise.py
@@ -0,0 +1,126 @@
+from dataclasses import dataclass
+from enum import Enum
+from typing import List
+import sys
+from collections import Counter
+
+
+class OperatingSystem(Enum):
+    MACOS = "macOS"
+    ARCH = "Arch Linux"
+    UBUNTU = "Ubuntu"
+
+
+@dataclass(frozen=True)
+class Person:
+    name: str
+    age: int
+    preferred_operating_system: OperatingSystem
+
+
+@dataclass(frozen=True)
+class Laptop:
+    id: int
+    manufacturer: str
+    model: str
+    screen_size_in_inches: float
+    operating_system: OperatingSystem
+
+
+name = input("Insert your name :")
+if len(name) == 0:
+    print("Name cannot be empty!", file=sys.stderr)
+    exit(1)
+elif len(name) > 50:
+    print("Name is too long!", file=sys.stderr)
+    exit(1)
+try:
+    age = int(input("Insert your age :"))
+    if age < 18 or age > 150:
+        raise ValueError("Age out of range")
+except ValueError as e:
+    print(f"Invalid age: {e}", file=sys.stderr)
+    sys.exit(1)
+preferred_os = input(
+    "Insert your preferred_operating_system(macOS,Arch Linux,Ubuntu) :"
+)
+try:
+    preferred_operating_system = OperatingSystem(preferred_os)
+except ValueError:
+    print("error in os name", file=sys.stderr)
+    sys.exit(1)
+
+person = Person(name, age, preferred_operating_system)
+
+
+def find_possible_laptops(laptops: List[Laptop], person: Person) -> List[Laptop]:
+    possible_laptops = []
+    for laptop in laptops:
+        if laptop.operating_system == person.preferred_operating_system:
+            possible_laptops.append(laptop)
+    return possible_laptops
+
+
+laptops = [
+    Laptop(
+        id=1,
+        manufacturer="Dell",
+        model="XPS",
+        screen_size_in_inches=13,
+        operating_system=OperatingSystem.ARCH,
+    ),
+    Laptop(
+        id=2,
+        manufacturer="Dell",
+        model="XPS",
+        screen_size_in_inches=15,
+        operating_system=OperatingSystem.UBUNTU,
+    ),
+    Laptop(
+        id=3,
+        manufacturer="Dell",
+        model="XPS",
+        screen_size_in_inches=15,
+        operating_system=OperatingSystem.UBUNTU,
+    ),
+    Laptop(
+        id=4,
+        manufacturer="Apple",
+        model="macBook",
+        screen_size_in_inches=13,
+        operating_system=OperatingSystem.MACOS,
+    ),
+    Laptop(
+        id=5,
+        manufacturer="Dell",
+        model="XPS",
+        screen_size_in_inches=13,
+        operating_system=OperatingSystem.ARCH,
+    ),
+]
+
+os_count = Counter(laptop.operating_system for laptop in laptops)
+max_count = max(os_count.values())
+
+print(f"\nHello {person.name}, here is the laptop availability info:")
+print(f"You have requested: {person.preferred_operating_system.value}")
+
+# print(max_count)
+most_available_os = []
+for os in os_count:
+    count = os_count[os]
+    if count == max_count:
+        most_available_os.append(os.value)
+# print(most_available_os)
+possible_laptops = find_possible_laptops(laptops, person)
+print(
+    f"Count of available  {person.preferred_operating_system.value} laptops for you is : {len(possible_laptops)}"
+)
+
+formatted_os = [f"{os.value} {os_count[os]}" for os in os_count if os_count[os] == max_count]
+print(f"Most available operating systems: {', '.join(formatted_os)}")
+
+if len(possible_laptops) < max_count:
+    print(
+        f"Note: If you are willing to accept : {" or ".join(most_available_os)}, you are more likely to get a laptop."
+    )
diff --git a/sprint5-prep/prep9-exercise.py b/sprint5-prep/prep9-exercise.py
new file mode 100644
index 00000000..e9bd3fb7
--- /dev/null
+++ b/sprint5-prep/prep9-exercise.py
@@ -0,0 +1,38 @@
+class Parent:
+    def __init__(self, first_name: str, last_name: str):
+        self.first_name = first_name
+        self.last_name = last_name
+
+    def get_name(self) -> str:
+        return f"{self.first_name} {self.last_name}"
+
+
+class Child(Parent):
+    def __init__(self, first_name: str, last_name: str):
+        super().__init__(first_name, last_name)
+        self.previous_last_names: list[str] = []
+
+    def change_last_name(self, last_name) -> None:
+        self.previous_last_names.append(self.last_name)
+        self.last_name = last_name
+
+    def get_full_name(self) -> str:
+        suffix = ""
+        if len(self.previous_last_names) > 0:
+            suffix = f" (née {self.previous_last_names[0]})"
+        return f"{self.first_name} {self.last_name}{suffix}"
+
+
+person1 = Child("Elizaveta", "Alekseeva")
+print(person1.get_name())
+print(person1.get_full_name())
+person1.change_last_name("Tyurina")
+print(person1.get_name())
+print(person1.get_full_name())
+
+person2 = Parent("Elizaveta", "Alekseeva")
+print(person2.get_name())
+# print(person2.get_full_name())
+# person2.change_last_name("Tyurina")
+print(person2.get_name())
+# print(person2.get_full_name())