diff --git a/code/test-exam/main.py b/code/test-exam/main.py
new file mode 100644
index 0000000..6b23bce
--- /dev/null
+++ b/code/test-exam/main.py
@@ -0,0 +1,125 @@
+import math
+import random
+
+
+def primfactors(n, divisor=2):
+    if n == 1:
+        return []
+
+    if not n % divisor:
+        return [divisor] + primfactors(n // divisor, divisor)
+
+    return primfactors(n, divisor + 1)
+
+
+def harmon(n, val=0):
+    if not n:
+        return 0
+
+    val += harmon(n - 1, 1 / n)
+    return val
+
+
+def usum(n, res=1):
+    if not n:
+        return 0
+
+    res += usum(n - 1, res + 2)
+    return res
+
+
+def a4(x):
+    return (lambda x: 7 * x)(x)
+
+
+def b4(x):
+    return (lambda x: math.pow(x, 3 / 5))(x)
+
+
+def reverse(a: list):
+    if len(a) == 1:
+        return a
+
+    # Reverse first and last
+    a[0], a[-1] = a[-1], a[0]
+
+    # return [a[0], reverse(a[1:-2]), a[-1]]
+    return [a[0]] + reverse(a[1:-1]) + [a[-1]]
+
+
+class Ticket:
+    event = ""
+    price_class = 0
+
+    def __init__(self, price, num, is_valid) -> None:
+        self.price = price
+        self.num = num
+        self.is_valid = is_valid
+
+    def __str__(self):
+        return f"Price: {self.price}; \n Number: {self.num} \nValid: {self.is_valid}"
+
+    def __repr__(self) -> str:
+        return f"Price: {self.price}; \n Number: {self.num} \nValid: {self.is_valid}"
+
+    def convert(self, course):
+        new_price = self.price * course
+        print(f"Price with course: {course} is {new_price}")
+        return new_price
+
+    def get_is_valid(self):
+        return self.is_valid
+
+
+def fill_tickets():
+    return [
+        Ticket(i * 10, num=random.random() * i, is_valid=True if i % 3 else False)
+        for i in range(12)
+    ]
+
+
+def writeTicketFile(ticket_list: list):
+    with open("ticket_list.txt", "+w") as f:
+        f.writelines(
+            [f"Ticket {i}: {t.__str__()} \n\n" for t, i in enumerate(ticket_list)]
+        )
+
+
+class TicketA(Ticket):
+    price_class = "A"
+
+    def write_to_file(self):
+        with open(f"{self.price_class}.txt", "a") as file:
+            file.write(self.__str__() + "\n")
+
+
+class TicketB(Ticket):
+    price_class = "B"
+
+    def write_to_file(self):
+        with open(f"{self.price_class}.txt", "a") as file:
+            file.write(self.__str__() + "\n")
+
+
+class TicketC(Ticket):
+    price_class = "C"
+
+    def write_to_file(self):
+        with open(f"{self.price_class}.txt", "a") as file:
+            file.write(self.__str__() + "\n")
+
+
+class TicketD(Ticket):
+    price_class = "D"
+
+    def write_to_file(self):
+        with open(f"{self.price_class}.txt", "a") as file:
+            file.write(self.__str__() + "\n")
+
+
+def main():
+    writeTicketFile(fill_tickets())
+
+
+if __name__ == "__main__":
+    main()