diff --git a/1.py b/1.py
index fd6cfeb..c8fafa5 100644
--- a/1.py
+++ b/1.py
@@ -1,32 +1,75 @@
-MENU = {
-    'espresso': {
-        'ingredients': {
-            'coffee': 19,
-            'water': 35,
-        },
-        'price': 1.99,
-    },
-    'latte': {
-        'ingredients': {
-            'coffee': 24,
-            'water': 50,
-            'milk': 150,
-        },
-        'price': 2.39,
-    },
-    'flat white': {
-        'ingredients':{
-            'coffee': 24,
-            'water': 60,
-            'milk': 50,
-        },
-        'price': 3.19,
-    }
-}
-
-INVENTORY = {
-    'coffee': 100,
-    'water': 300,
-    'milk': 300,
-    'money': 0,
-}
\ No newline at end of file
+import Menu
+
+
+def short_resources(coffe_needed,water_needed,milk_needed):
+    short_resource = []
+    if coffe_needed>Menu.INVENTORY['coffee']:
+        short_resource.append('coffee')
+    if milk_needed>Menu.INVENTORY['milk']:
+        short_resource.append('milk')
+    if water_needed>Menu.INVENTORY['water']:
+        short_resource.append('water')
+    print(f"There is not enough {', '.join(short_resource)}")
+
+def have_resources(coffe_needed,water_needed,milk_needed):
+    if coffe_needed <= Menu.INVENTORY['coffee'] and water_needed <= Menu.INVENTORY['water'] and milk_needed <= Menu.INVENTORY['milk']:
+        return True
+    else:
+        short_resources(coffe_needed,water_needed,milk_needed)
+
+def money_check(taken_order,money_needed):
+    print(f"Price of Your drink {taken_order} is {money_needed}$")
+    print("Insert coins(Only quarters, dimes, nickles and pennies)")
+    quarters = int(input("How many quarters:"))
+    dimes = int(input("How many dimes:"))
+    nickles = int(input("How many nickles:"))
+    pennies = int(input("How many pennies:"))
+    money_inserted = quarters*0.25 + dimes*0.1 + nickles*0.05 + pennies*0.01
+    if money_inserted >= money_needed:
+        return money_inserted
+    else:
+        print( f"Sorry that's not enough money. Money refunded")
+        return 0
+
+
+def its_order(taken_order):
+    money_needed = Menu.MENU[taken_order]['price']
+    coffe_needed = Menu.MENU[taken_order]['ingredients']['coffee']
+    water_needed = Menu.MENU[taken_order]['ingredients']['water']
+    milk_needed = 0
+    if taken_order != 'espresso':
+        milk_needed = Menu.MENU[taken_order]['ingredients']['milk']
+
+    if have_resources(coffe_needed,water_needed,milk_needed):
+        money_inserted = money_check(taken_order, money_needed)
+        if money_inserted!=0:
+            Menu.INVENTORY['money'] += money_needed
+            if money_inserted>money_needed:
+                print(f"Here is {round(money_inserted-money_needed, 2)}$ in  change")
+                Menu.INVENTORY['milk'] -= milk_needed
+                Menu.INVENTORY['water'] -= water_needed
+                Menu.INVENTORY['coffee'] -= coffe_needed
+                print("Here is your order")
+
+def report():
+    for key in Menu.INVENTORY:
+        post = "ml"
+        if key=="coffe":
+            post = "g"
+        elif key=="money":
+            post = "$"
+        print(f"{key}: {Menu.INVENTORY[key]}{post}")
+
+continue_buying = True
+while continue_buying:
+    valid_order = ['espresso','latte', 'cappuccino']
+    order = input("What would you like? (espresso/latte/cappuccino/off/report)")
+    if order == "off":
+        continue_buying = False
+    elif order == "report":
+        report()
+    else:
+        if order in valid_order:
+            its_order(order)
+        else:
+            print("Invalid input")
\ No newline at end of file
diff --git a/2.py b/2.py
index bc686dd..ce0b399 100644
--- a/2.py
+++ b/2.py
@@ -16,7 +16,48 @@ def send_email(msg, email):
     """
     ...
 
+
 # Solution goes here
+class Patient:
+
+    def __init__(self, first_name, second_name, title, birth_date, email, phone_number, mobile_number):
+        self.first_name = first_name
+        self.second_name = second_name
+        self.title = title
+        self.birth_date = birth_date
+        self.email = email
+        self.phone_number = phone_number
+        self.mobile_number = mobile_number
+
+    def greeting(self):
+        return f"Hello {self.title} {self.first_name} {self.second_name}"
+
+    def calculating_age(self,current_date):
+        age = current_date.year - self.birth_date.year
+        month = current_date.month - self.birth_date.month
+        days = current_date.day - self.birth_date.day
+        if days < 0:
+            month -= 1
+            days += 30
+        if month < 0:
+            age -= 1
+
+        return f"{age} Y {month} M {days} D"
+
+    def send_appointment_reminder(self, appointment_date):
+        current_date = datetime.now()
+        age = self.calculating_age(current_date)
+
+        msg = f"Dear {self.first_name}, your appointment is scheduled for {appointment_date.strftime('%Y-%m-%d %H:%M')}.\n"
+        msg += f"Your age is {age}"
+
+        send_sms(msg, self.mobile_number)
+        send_email(msg, self.email)
+
+        print(msg)
+
+
+
 
 patient1 = Patient(
     'John',
diff --git a/3.py b/3.py
new file mode 100644
index 0000000..a65dfb0
--- /dev/null
+++ b/3.py
@@ -0,0 +1,104 @@
+import Menu
+
+class coffee_shop:
+
+    def __init__(self, order, left_coffee, left_milk, left_water, left_money, coffee_needed, milk_needed, water_needed, money_needed):
+        self.order = order
+        self.left_coffee = left_coffee
+        self.left_milk = left_milk
+        self.left_water = left_water
+        self.left_money = left_money
+        self.coffee_needed = coffee_needed
+        self.milk_needed = milk_needed
+        self.water_needed = water_needed
+        self.money_needed = money_needed
+
+    def short_resources(self):
+        short_resource = []
+        if self.coffee_needed > self.left_coffee:
+            short_resource.append('coffee')
+        if self.milk_needed > self.left_milk['milk']:
+            short_resource.append('milk')
+        if self.water_needed > self.left_water['water']:
+            short_resource.append('water')
+        print(f"There is not enough {', '.join(short_resource)}")
+
+    def have_resources(self):
+        if self.coffee_needed <= self.left_coffee and self.water_needed <= self.left_water and milk_needed <= self.left_milk:
+            return True
+        else:
+            self.short_resources()
+
+    def money_check(self):
+        print(f"Price of Your drink {self.order} is {self.money_needed}$")
+        print("Insert coins(Only quarters, dimes, nickles and pennies)")
+        quarters = int(input("How many quarters:"))
+        dimes = int(input("How many dimes:"))
+        nickles = int(input("How many nickles:"))
+        pennies = int(input("How many pennies:"))
+        money_inserted = quarters * 0.25 + dimes * 0.1 + nickles * 0.05 + pennies * 0.01
+        if money_inserted >= self.money_needed:
+            return money_inserted
+        else:
+            print(f"Sorry that's not enough money. Money refunded")
+            return 0
+
+    def its_order(self):
+        if self.have_resources():
+            money_inserted = self.money_check()
+            if money_inserted != 0:
+                if money_inserted > money_needed:
+                    print(f"Here is {round(money_inserted-self.money_needed, 2)}$ in  change")
+                    print("Here is your order")
+                    return money_needed, milk_needed, water_needed, coffee_needed
+        return 0, 0, 0, 0
+
+
+def report():
+    for key in Menu.INVENTORY:
+        post = "ml"
+        if key =="coffe":
+            post = "g"
+        elif key =="money":
+            post = "$"
+        print(f"{key}: {Menu.INVENTORY[key]}{post}")
+
+
+continue_buying = True
+while continue_buying:
+    valid_order = ['espresso','latte', 'cappuccino']
+    order = input("What would you like? (espresso/latte/cappuccino/off/report)")
+    if order == "off":
+        continue_buying = False
+    elif order == "report":
+        report()
+    else:
+        if order in valid_order:
+            left_coffee = Menu.INVENTORY['coffee']
+            left_milk = Menu.INVENTORY['milk']
+            left_water = Menu.INVENTORY['water']
+            left_money = Menu.INVENTORY['money']
+            money_needed = Menu.MENU[order]['price']
+            coffee_needed = Menu.MENU[order]['ingredients']['coffee']
+            water_needed = Menu.MENU[order]['ingredients']['water']
+            milk_needed = 0
+            if order != 'espresso':
+                milk_needed = Menu.MENU[order]['ingredients']['milk']
+            c_m = coffee_shop(
+                order,
+                left_coffee,
+                left_milk,
+                left_water,
+                left_money,
+                coffee_needed,
+                milk_needed,
+                water_needed,
+                money_needed,
+            )
+            changes = c_m.its_order()
+            Menu.INVENTORY['money'] += changes[0]
+            Menu.INVENTORY['milk'] -= changes[1]
+            Menu.INVENTORY['water'] -= changes[2]
+            Menu.INVENTORY['coffee'] -= changes[3]
+        else:
+            print("Invalid input")
\ No newline at end of file
diff --git a/Menu.py b/Menu.py
new file mode 100644
index 0000000..560e631
--- /dev/null
+++ b/Menu.py
@@ -0,0 +1,32 @@
+MENU = {
+    'espresso': {
+        'ingredients': {
+            'coffee': 19,
+            'water': 35,
+        },
+        'price': 1.99,
+    },
+    'latte': {
+        'ingredients': {
+            'coffee': 24,
+            'water': 50,
+            'milk': 150,
+        },
+        'price': 2.39,
+    },
+    'cappuccino': {
+        'ingredients':{
+            'coffee': 24,
+            'water': 60,
+            'milk': 50,
+        },
+        'price': 3.19,
+    }
+}
+
+INVENTORY = {
+    'coffee': 100,
+    'water': 300,
+    'milk': 300,
+    'money': 0,
+}
\ No newline at end of file