diff --git a/day_01/01_basics/exercise/01_hello_v2.py b/day_01/01_basics/exercise/01_hello_v2.py
index c3c7aab..c6b8fec 100644
--- a/day_01/01_basics/exercise/01_hello_v2.py
+++ b/day_01/01_basics/exercise/01_hello_v2.py
@@ -1,4 +1,9 @@
 # TODO: Print the following in the console:
 # Use variables for the name and programming language
-# print("Hello! My name is Jeff")
-# print("I am learning Python")
+print("Hello! My name is Leng")
+print("I am learning Python")
+
+name = "Leng"
+language = "Python" 
+print("Hello! My name is", name)
+print("I am learning", language)    
\ No newline at end of file
diff --git a/day_01/01_basics/exercise/02_counter.py b/day_01/01_basics/exercise/02_counter.py
index b516c84..ec399f0 100644
--- a/day_01/01_basics/exercise/02_counter.py
+++ b/day_01/01_basics/exercise/02_counter.py
@@ -2,13 +2,16 @@
 print("Counter:", counter)
 
 # Point up: Add one to the counter
-# TODO: Change code here
+# counter = counter + 1
+counter += 1
 print("Counter:", counter)
 
 # Bonus: Multiply the score by 10
-# TODO: Change code here
+# counter = counter * 10
+counter *= 10
 print("Counter:", counter)
 
 # Penalty: Decrease the score by 4
-# TODO: Change code here
+# counter = counter - 4
+counter -= 4
 print("Counter:", counter)
diff --git a/day_01/01_basics/exercise/02_counter_v2.py b/day_01/01_basics/exercise/02_counter_v2.py
index afadbcf..bb5e8a1 100644
--- a/day_01/01_basics/exercise/02_counter_v2.py
+++ b/day_01/01_basics/exercise/02_counter_v2.py
@@ -3,12 +3,15 @@
 
 # Point up: Add one to the counter
 # TODO: Change code here
+counter += 1
 print("Counter:", counter)
 
 # Bonus: Multiply the score by 10
 # TODO: Change code here
+counter *= 10
 print("Counter:", counter)
 
 # Penalty: Decrease the score 4
 # TODO: Change code here
+counter -= 4
 print("Counter:", counter)
diff --git a/day_01/01_basics/exercise/03_wishlist.py b/day_01/01_basics/exercise/03_wishlist.py
index 16a3590..6ab23b9 100644
--- a/day_01/01_basics/exercise/03_wishlist.py
+++ b/day_01/01_basics/exercise/03_wishlist.py
@@ -1,7 +1,7 @@
 # TODO: Fill in the variables based on the item you want to buy
-name = None  # What is the name of the item?
-price = None  # How much is the item?
-organic = None  # Is it organic?
+name = "iPhone 17"  # What is the name of the item?
+price = 100_000 # How much is the item?
+organic = True  # Is it organic?
 
 # TODO: Then, print each information one line at a time
 print(name)
diff --git a/day_01/01_basics/exercise/04_expense_tracker_v2.py b/day_01/01_basics/exercise/04_expense_tracker_v2.py
index de29a3d..39b0b47 100644
--- a/day_01/01_basics/exercise/04_expense_tracker_v2.py
+++ b/day_01/01_basics/exercise/04_expense_tracker_v2.py
@@ -1,13 +1,15 @@
 # TODO: Ask the user for three values
-expense_1 = None  # Let the user enter a number
-expense_2 = None  # Let the user enter a number
-expense_3 = None  # Let the user enter a number
+expense_1 = int(input("Expense_1: ")) # Let the user enter a number
+expense_2 = int(input("Expense_2: "))  # Let the user enter a number
+expense_3 = int(input("Expense_3: "))  # Let the user enter a number
 
 # TODO: Then, print each information one line at a time
-print(expense_1)
-print(expense_2)
-print(expense_3)
+print("Expense_1 :" , expense_1)
+print("Expense_2 :" , expense_2)
+print("Expense_3 :" , expense_3)
+
+
 
 # TODO: Calculate the sum of the numbers
-total = None
-print(total)
+total = int(expense_1) + int(expense_2) + int(expense_3)
+print("Total:" , total)
diff --git a/day_01/01_basics/exercise/04_expense_tracker_v3.py b/day_01/01_basics/exercise/04_expense_tracker_v3.py
index 532b109..7e22de2 100644
--- a/day_01/01_basics/exercise/04_expense_tracker_v3.py
+++ b/day_01/01_basics/exercise/04_expense_tracker_v3.py
@@ -1,15 +1,16 @@
 # TODO: Ask the user for three values
-expense_1 = None  # Let the user enter a number
-expense_2 = None  # Let the user enter a number
-expense_3 = None  # Let the user enter a number
+expense_1 = int(input("Expense_1: "))  # Let the user enter a number
+expense_2 = int(input("Expense_2: "))  # Let the user enter a number
+expense_3 = int(input("Expense_3: "))  # Let the user enter a number
 
 # TODO: Then, print each information one line at a time
-print(expense_1)
-print(expense_2)
-print(expense_3)
+print("Expense_1 :" , expense_1)
+print("Expense_2 :" , expense_2)
+print("Expense_3 :" , expense_3)
 
 total = expense_1 + expense_2 + expense_3
 print(total)
 
 # TODO: Format this part using f-strings
-print(expense_1, "+", expense_2, "+", expense_3, "=", total)
+print(f"Expense_1: {expense_1} + Expense_2: {expense_2} + Expense_3: {expense_3} = {total}")
+
diff --git a/day_01/01_basics/exercise/05_ice_ice_ice_baby.py b/day_01/01_basics/exercise/05_ice_ice_ice_baby.py
index 91c13b2..3e85f1b 100644
--- a/day_01/01_basics/exercise/05_ice_ice_ice_baby.py
+++ b/day_01/01_basics/exercise/05_ice_ice_ice_baby.py
@@ -1,5 +1,5 @@
-ice = "Ice"
+ice = "Ice " *3
 baby = "Baby"
 
 # TODO: Print "Ice Ice Ice Baby" using + and *
-print()
+print(ice + baby)
diff --git a/day_01/01_basics/exercise/06_price_post.py b/day_01/01_basics/exercise/06_price_post.py
index cdd5a5a..10187c8 100644
--- a/day_01/01_basics/exercise/06_price_post.py
+++ b/day_01/01_basics/exercise/06_price_post.py
@@ -2,10 +2,13 @@
 price_notification = "The price of {} is ${}."
 
 # TODO: Post: Latte ($3.5)
-print(price_notification)
+formatted_price_notification = price_notification.format("Latte", 3.5)
+print(formatted_price_notification)
 
 # TODO: Post: Espresso ($2.75)
-print(price_notification)
+formatted_price_notification = price_notification.format("Espresso", 2.75)
+print(formatted_price_notification)
 
 # TODO: Post: Cappuccino ($4.0)
-print(price_notification)
\ No newline at end of file
+formatted_price_notification = price_notification.format("Cappuccino", 4.0)
+print(formatted_price_notification)
\ No newline at end of file
diff --git a/day_01/01_basics/exercise/07_sales_tracker.py b/day_01/01_basics/exercise/07_sales_tracker.py
index b736fdc..a1ba7b3 100644
--- a/day_01/01_basics/exercise/07_sales_tracker.py
+++ b/day_01/01_basics/exercise/07_sales_tracker.py
@@ -1,17 +1,12 @@
-# Ask the cost and pax or count for three separate items
-item_cost_1 = int(input("Item cost 1: "))
-item_count_1 = int(input("Item count 1: "))
+item_cost_1 = int(input("Item cost 1: "))  # Let the user enter a number
+item_count_1 = int(input("Item count 1: "))  # Let the user enter a number
 
-item_cost_2 = int(input("Item cost 2: "))
-item_count_2 = int(input("Item count 2: "))
+item_cost_2 = int(input("Item cost 2: "))  # Let the user enter a number
+item_count_2 = int(input("Item count 2: "))  # Let the user enter a number
 
-item_cost_3 = int(input("Item cost 3: "))
-item_count_3 = int(input("Item count 3: "))
+item_cost_3 = int(input("Item cost 3: "))  # Let the user enter a number    
+item_count_3 = int(input("Item count 3: "))  # Let the user enter a number  
 
-# Calculate the total
-total = (
-        (item_cost_1 * item_count_1)
-        + (item_cost_2 * item_count_2)
-        + (item_cost_3 * item_count_3)
-)
-print(total)
+#calculate total sales
+total_sales = (item_cost_1 * item_count_1) + (item_cost_2 * item_count_2) + (item_cost_3 * item_count_3)
+print("Total sales: ", total_sales)
diff --git a/day_01/01_basics/exercise/08_height_requirment.py b/day_01/01_basics/exercise/08_height_requirment.py
new file mode 100644
index 0000000..1c90ffa
--- /dev/null
+++ b/day_01/01_basics/exercise/08_height_requirment.py
@@ -0,0 +1,11 @@
+minimum_height =138
+
+# Ask the user for the following inputs
+user_height = int(input("Enter your height in cm: "))
+
+# Notify user if they can enter the ride 
+can_enter_ride = user_height >= minimum_height
+print("You can enter the ride") 
+
+if not can_enter_ride:
+    print("Sorry, you have to grow taller before you can ride.")    
\ No newline at end of file
diff --git a/day_01/01_basics/exercise/09_valid_score.py b/day_01/01_basics/exercise/09_valid_score.py
new file mode 100644
index 0000000..379a236
--- /dev/null
+++ b/day_01/01_basics/exercise/09_valid_score.py
@@ -0,0 +1,10 @@
+# Range minimum and maximum bounds
+min_score = 0
+max_score = 100
+
+# ENter user input
+number = int(input("Enter your score: "))   
+
+# Notify user if the number is a valid score
+valid_score = min_score <= number <= max_score
+print("Valid score:", valid_score)  
\ No newline at end of file
diff --git a/day_01/01_basics/exercise/10_login_system.py b/day_01/01_basics/exercise/10_login_system.py
new file mode 100644
index 0000000..f6daf38
--- /dev/null
+++ b/day_01/01_basics/exercise/10_login_system.py
@@ -0,0 +1,10 @@
+# Expected password 
+correct_password = "pass"
+
+# Enter user password
+password_input = input("Please provide password: ")
+
+# Notify user if the password is valid
+correct_password_given = password_input == correct_password
+print("Access:", correct_password_given)
+
diff --git a/day_01/01_basics/exercise/10_login_system_v2.py b/day_01/01_basics/exercise/10_login_system_v2.py
new file mode 100644
index 0000000..0ac1444
--- /dev/null
+++ b/day_01/01_basics/exercise/10_login_system_v2.py
@@ -0,0 +1,11 @@
+# Expected password 
+correct_password = "pass"
+
+# Enter user password
+password_input = input("Please provide password: ")
+
+# TODO: Notify user if the password is valid
+correct_password_given = correct_password == password_input
+
+if correct_password_given:
+    print("Access granted")   
\ No newline at end of file
diff --git a/day_01/01_basics/notes/05_input/01_input.py b/day_01/01_basics/notes/05_input/01_input.py
index 8339c34..4d67c80 100644
--- a/day_01/01_basics/notes/05_input/01_input.py
+++ b/day_01/01_basics/notes/05_input/01_input.py
@@ -1,2 +1,4 @@
 user_input = input()
 print(user_input)
+
+
diff --git a/day_01/01_basics/notes/05_input/sample.py b/day_01/01_basics/notes/05_input/sample.py
new file mode 100644
index 0000000..124c1dc
--- /dev/null
+++ b/day_01/01_basics/notes/05_input/sample.py
@@ -0,0 +1,28 @@
+password = input("Enter your password: ")
+while password != "pass":
+    print("Incorrect password, try again.")
+    password = input("Enter your password: ")
+    
+    
+def greetings(name):
+    print(f"Hello name ! Nice to meet you.")
+   
+greetings(name)
+
+def product(x, y, z=1):
+    result = x * y * z
+    print(f"The product is: {result}")
+
+
+def product(x, y, z=1):
+    result = x * y * z
+    return result
+
+output = product(x=1, y=2, z=3) * 5
+print(f"The product is: {output}")
+
+
+try:
+    number_input = int(input("Number:"))
+except:
+    print("Invalid input")
diff --git a/day_01/02_control_flow/exercise/07_sales_tracker_v2.py b/day_01/02_control_flow/exercise/07_sales_tracker_v2.py
index 070e9e4..ef74f18 100644
--- a/day_01/02_control_flow/exercise/07_sales_tracker_v2.py
+++ b/day_01/02_control_flow/exercise/07_sales_tracker_v2.py
@@ -1,10 +1,13 @@
 # TODO: Ask the user how many items will be calculated
-input_count = None
+input_count = int(input("How many items will you enter? "))
 total = 0
 
 # TODO: Use a for loop to ask for more than one cost and count
-item_cost = None  # Let the user enter a number
-item_count = None  # Let the user enter a number
-item_total = item_cost + item_count
+for i in range(input_count):
+    item_cost = int(input(f"Enter cost of item {i+1}: "))
+    item_count = int(input(f"Enter quantity of item {i+1}: "))
+    item_total = item_cost * item_count
+    total += item_total
+
+print(f"The total cost is: {total}")
 
-print(total)
diff --git a/day_01/02_control_flow/exercise/10_login_system_v3.py b/day_01/02_control_flow/exercise/10_login_system_v3.py
index 7bcc33f..03b1a7e 100644
--- a/day_01/02_control_flow/exercise/10_login_system_v3.py
+++ b/day_01/02_control_flow/exercise/10_login_system_v3.py
@@ -5,6 +5,6 @@
 password_input = input("Please provide password: ")
 
 # TODO: Notify user if password is valid or invalid
-correct_password_given = None
+correct_password_given = correct_password == password_input
 print("Access Granted")
 print("Access Denied")
diff --git a/day_01/02_control_flow/exercise/10_login_system_v4.py b/day_01/02_control_flow/exercise/10_login_system_v4.py
index a261f00..f4e70d1 100644
--- a/day_01/02_control_flow/exercise/10_login_system_v4.py
+++ b/day_01/02_control_flow/exercise/10_login_system_v4.py
@@ -7,6 +7,8 @@
 password_input = input("Please provide password: ")
 
 # TODO: Notify user if credentials are valid or invalid
-correct_credentials = None
-print("Access Granted")
-print("Access Denied")
+correct_credentials = (correct_username == username_input) * (correct_password == password_input)
+if correct_credentials:
+    print("Access Granted") 
+else:   
+    print("Access Denied")
diff --git a/day_01/02_control_flow/exercise/10_login_system_v5.py b/day_01/02_control_flow/exercise/10_login_system_v5.py
index d93ae98..56df8bb 100644
--- a/day_01/02_control_flow/exercise/10_login_system_v5.py
+++ b/day_01/02_control_flow/exercise/10_login_system_v5.py
@@ -9,6 +9,8 @@
 password_input = input("Please provide password: ")
 
 # TODO: Notify user if credentials are valid or invalid
-correct_credentials = None
-print("Access Granted")
-print("Access Denied")
+correct_credentials = ((correct_username == username_input) * (correct_password == password_input)) or ((admin_username == username_input) * (admin_password == password_input))
+if correct_credentials: 
+    print("Access Granted")
+else:
+    print("Access Denied")  
\ No newline at end of file
diff --git a/day_01/02_control_flow/exercise/11_traffic_lights.py b/day_01/02_control_flow/exercise/11_traffic_lights.py
index d360237..c234cd3 100644
--- a/day_01/02_control_flow/exercise/11_traffic_lights.py
+++ b/day_01/02_control_flow/exercise/11_traffic_lights.py
@@ -5,3 +5,22 @@
 # "green"   -> print "Go"
 # "yellow"  -> print "Wait..."
 # "red"     -> print "Stop"
+
+if color_input == "green":
+    print("Go")
+elif color_input == "yellow":
+    print("Wait...")                
+elif color_input == "red":
+    print("Stop")   
+
+
+match color_input:
+    case "green":       
+        print("Go")
+    case "yellow":          
+        print("Wait...")
+    case "red":     
+        print("Stop")   
+
+        
+
diff --git a/day_01/02_control_flow/exercise/11_traffic_lights_v2.py b/day_01/02_control_flow/exercise/11_traffic_lights_v2.py
index bac9698..01b0ed7 100644
--- a/day_01/02_control_flow/exercise/11_traffic_lights_v2.py
+++ b/day_01/02_control_flow/exercise/11_traffic_lights_v2.py
@@ -6,3 +6,22 @@
 # "yellow"  -> print "Wait..."
 # "red"     -> print "Stop"
 # Everything else   -> print "Malfunction"
+
+if color_input == "green":
+    print("Go")
+elif color_input == "yellow":
+    print("Wait...")                
+elif color_input == "red":
+    print("Stop")   
+else:
+    print("Malfunction")  
+
+match color_input:
+    case "green":       
+        print("Go")
+    case "yellow":          
+        print("Wait...")
+    case "red":     
+        print("Stop")   
+    case _:     
+        print("Malfunction")
\ No newline at end of file
diff --git a/day_01/02_control_flow/exercise/12_bookmarks_v2.py b/day_01/02_control_flow/exercise/12_bookmarks_v2.py
index 3cd94ec..c837af1 100644
--- a/day_01/02_control_flow/exercise/12_bookmarks_v2.py
+++ b/day_01/02_control_flow/exercise/12_bookmarks_v2.py
@@ -1,4 +1,10 @@
 # TODO: Define a list of your favorite websites
-websites = []
+websites = ["facebook.com", "instagram.com", "twitter.com", "linkedIn.com", "github.com"]   
 
 # TODO: Print the entire list of websites (one at a time)
+for site in websites:
+    print(site)     
+
+numbers = [0, 1, 2] 
+for number in range(3):
+    print (number)
\ No newline at end of file
diff --git a/day_01/02_control_flow/exercise/13_repetition.py b/day_01/02_control_flow/exercise/13_repetition.py
index 5797a8c..6077c44 100644
--- a/day_01/02_control_flow/exercise/13_repetition.py
+++ b/day_01/02_control_flow/exercise/13_repetition.py
@@ -2,4 +2,6 @@
 message = "This is a very long message that's hard to type"
 
 # TODO: Print the message eleven times
-print(message)
\ No newline at end of file
+print(message)  
+for x in range(11):
+    print(message)  
diff --git a/day_01/02_control_flow/exercise/14_counting.py b/day_01/02_control_flow/exercise/14_counting.py
index 1f9eda5..dfd2d65 100644
--- a/day_01/02_control_flow/exercise/14_counting.py
+++ b/day_01/02_control_flow/exercise/14_counting.py
@@ -2,4 +2,6 @@
 end = int(input("Enter number: "))
 
 # TODO: Print the numbers 0 to end
-print()
+range_numbers = range(end + 1)
+for number in range_numbers:
+    print(number)       
diff --git a/day_01/02_control_flow/exercise/16_running_balance.py b/day_01/02_control_flow/exercise/16_running_balance.py
index f3bd3be..f09240d 100644
--- a/day_01/02_control_flow/exercise/16_running_balance.py
+++ b/day_01/02_control_flow/exercise/16_running_balance.py
@@ -4,8 +4,29 @@
     command = input("Provide command: ")
 
     if command == "add":
-        pass  # TODO: Ask for number, add to total, and print
+       number = int(input("Enter a number: "))
+       total += number
+       print("Current total is:", total)
+         
     if command == "sub":
-        pass  # TODO: Ask for number, subtract to total, and print
+       number = int(input("Enter a number: "))
+       total -= number
+       print("Current total is:", total)
+    
     elif command == "exit":
         running = False
+
+# Using match-case
+match command:
+    case "add": 
+        number = int(input("Enter a number: "))
+        total += number
+        print("Current total is:", total)       
+        
+    case "sub": 
+        number = int(input("Enter a number: "))
+        total -= number
+        print("Current total is:", total)
+    case "exit":
+        running = False
+        
diff --git a/day_01/02_control_flow/exercise/17_search.py b/day_01/02_control_flow/exercise/17_search.py
index ae94f66..77d6ed8 100644
--- a/day_01/02_control_flow/exercise/17_search.py
+++ b/day_01/02_control_flow/exercise/17_search.py
@@ -3,4 +3,7 @@
 
 for item in items:
     # TODO: If item equals the item_to_find, print and exit loop
-    pass
+    if item == item_to_find:
+        print(f"Found {item_to_find}!")
+        break   
+    
diff --git a/day_01/02_control_flow/exercise/18_skip_range.py b/day_01/02_control_flow/exercise/18_skip_range.py
index f4fac19..4da802e 100644
--- a/day_01/02_control_flow/exercise/18_skip_range.py
+++ b/day_01/02_control_flow/exercise/18_skip_range.py
@@ -1,3 +1,7 @@
 for item in range(100):
     # TODO: Change code to skip printing numbers 20 to 80.
+    if item in (20, 80):
+        continue
     print(item)
+    
+
diff --git a/day_01/02_control_flow/exercise/19_line_generator.py b/day_01/02_control_flow/exercise/19_line_generator.py
new file mode 100644
index 0000000..f0b5a97
--- /dev/null
+++ b/day_01/02_control_flow/exercise/19_line_generator.py
@@ -0,0 +1,16 @@
+"""
+    Crete a function line_generator that prints the following:
+    Line 1
+    Line 2
+    Line 3
+    . . .
+    Line number
+"""
+
+#Use the fuction once
+def line_generator():
+    line_number = int(input("Enter a number: "))
+    for i in range(1, line_number + 1):
+        print(f"Line {i}")
+line_generator()
+
diff --git a/day_01/02_control_flow/exercise/19_line_generator_v2.py b/day_01/02_control_flow/exercise/19_line_generator_v2.py
new file mode 100644
index 0000000..584065b
--- /dev/null
+++ b/day_01/02_control_flow/exercise/19_line_generator_v2.py
@@ -0,0 +1,18 @@
+"""
+    Crete a function line_generator that has a paramaeter number
+    and prints the following:
+    Line 1
+    Line 2
+    Line 3
+    . . .
+    Line number
+"""
+
+#Use the fuction once
+def line_generator(number):
+    for i in range(1, number + 1):
+        print(f"Line {i}")
+line_generator(4)
+        
+
+
diff --git a/day_01/02_control_flow/notes/04_for_loop/01_list.py b/day_01/02_control_flow/notes/04_for_loop/01_list.py
index 62c68c2..85da8f6 100644
--- a/day_01/02_control_flow/notes/04_for_loop/01_list.py
+++ b/day_01/02_control_flow/notes/04_for_loop/01_list.py
@@ -1,2 +1,10 @@
 items = ["milk", "egg", "ice"]
-print(items)
+for item in items:
+    print(item)
+    
+    
+    
+    
+    
+    
+    
diff --git a/day_01/03_functions/exercise/19_line_generator_v2.py b/day_01/03_functions/exercise/19_line_generator_v2.py
index e07e204..5890545 100644
--- a/day_01/03_functions/exercise/19_line_generator_v2.py
+++ b/day_01/03_functions/exercise/19_line_generator_v2.py
@@ -1,9 +1,16 @@
 """
-    TODO: Create a function `line_generator` that has a parameter `number` and prints the following:
-	Line 1
-	Line 2
-	...
-	Line number
+    Create a function line_generator that has a paramaeter number
+    and prints the following:
+    Line 1
+    Line 2
+    Line 3
+    . . .
+    Line number
 """
 
-# TODO: Use the function once
+#Use the fuction once
+def line_generator(number):
+    for i in range(1, number + 1):
+        print(f"Line {i}")
+line_generator(4)
+        
\ No newline at end of file
diff --git a/day_01/03_functions/exercise/20_product_v2.py b/day_01/03_functions/exercise/20_product_v2.py
index 4a552ce..ff1517c 100644
--- a/day_01/03_functions/exercise/20_product_v2.py
+++ b/day_01/03_functions/exercise/20_product_v2.py
@@ -1,8 +1,18 @@
-def product():
-    """ TODO: Takes three inputs (or two) and print the product"""
+def product(num1, num2, num3):
+    """ TODO: Takes three inputs and print the product"""
 
 # TODO: product(1, 1, 1)	# 1
 # TODO: product(1, 2, 3)	# 6
 # TODO: product(2, 5, 10)	# 100
 # TODO: product(3, 3)	    # 9
 # TODO: product(2, 5)	    # 12
+
+
+    result = num1 * num2 * num3     
+    print(f"The product is: {result}")
+
+product1 = int(input("Enter first number: "))
+product2 = int(input("Enter second number: "))      
+product3 = int(input("Enter third number: "))
+product(product1, product2, product3)
+
diff --git a/day_01/03_functions/exercise/20_product_v3.py b/day_01/03_functions/exercise/20_product_v3.py
index c5c8e73..bbcae9b 100644
--- a/day_01/03_functions/exercise/20_product_v3.py
+++ b/day_01/03_functions/exercise/20_product_v3.py
@@ -6,3 +6,13 @@ def product():
 # TODO: product(2, 5, 10)	# 100
 # TODO: product(3, 3)	    # 9
 # TODO: product(2, 5)	    # 12
+
+product1 = int(input("Enter first number: "))
+product2 = int(input("Enter second number: "))      
+product3 = int(input("Enter third number: "))       
+def product(num1, num2, num3=1):
+    result = num1 * num2 * num3     
+    return result   
+output = product(product1, product2, product3) * 5
+print(f"The product is: {output}")
+
diff --git a/day_01/05_lab_session/exercise/01_multiplication_table.py b/day_01/05_lab_session/exercise/01_multiplication_table.py
index f88423a..beac0b9 100644
--- a/day_01/05_lab_session/exercise/01_multiplication_table.py
+++ b/day_01/05_lab_session/exercise/01_multiplication_table.py
@@ -17,3 +17,7 @@
 3 x 9 = 27
 3 x 10 = 30
 """
+for i in range(1, 11):
+    result = number * i
+    print(f"{number} x {i} = {result}") 
+    
diff --git a/day_01/05_lab_session/exercise/02_positive_input.py b/day_01/05_lab_session/exercise/02_positive_input.py
index f46dd63..5351ade 100644
--- a/day_01/05_lab_session/exercise/02_positive_input.py
+++ b/day_01/05_lab_session/exercise/02_positive_input.py
@@ -3,11 +3,52 @@
 
 # TODO: Then try to convert this into an integer using the following:
 number_converted = int(number)
+print(f"You entered a valid positive integer: {number_converted}")
 
 # The user could provide an invalid integer input (string)
 # TODO: Handle this case
+invalid_input = True
+try:    
+    number_converted = int(number)
+    invalid_input = False
+except:
+    print("Invalid input, please provide a valid integer.")
+if not invalid_input:
+    if number_converted < 0:
+        print("The number is negative, please provide a positive integer.")
+    else:
+        print(f"You entered a valid positive integer: {number_converted}")
+        
 
 # The user could give a negative number
 # TODO: Handle this case
+negative_input = True
+if not invalid_input:
+    if number_converted < 0:
+        print("The number is negative, please provide a positive integer.")
+    else:
+        negative_input = False
+        print(f"You entered a valid positive integer: {number_converted}")
+        
 
 # Challenge: TODO: Give the user infinite times to retry
+infinite_retry = True
+while infinite_retry:
+    if not invalid_input and not negative_input:
+        infinite_retry = False
+    else:
+        number = input("Enter number: ")
+        try:    
+            number_converted = int(number)
+            invalid_input = False
+        except:
+            print("Invalid input, please provide a valid integer.")
+            continue
+        if number_converted < 0:
+            print("The number is negative, please provide a positive integer.")
+            continue
+        else:
+            negative_input = False
+            print(f"You entered a valid positive integer: {number_converted}")
+            infinite_retry = False
+            
diff --git a/day_01/05_lab_session/exercise/03_quick_draw.py b/day_01/05_lab_session/exercise/03_quick_draw.py
index 3986259..27848be 100644
--- a/day_01/05_lab_session/exercise/03_quick_draw.py
+++ b/day_01/05_lab_session/exercise/03_quick_draw.py
@@ -1,11 +1,62 @@
 # TODO: Ask the user for an input
 user_choice = input("Pick a choice (rock/paper/scissors): ")
+input_choices = ["rock", "paper", "scissors"] 
+if user_choice not in input_choices:
+    print("Invalid choice, please pick rock, paper, or scissors.")
+    exit()
+
 
 # TODO: Make a random choice for the computer
 # Note: Read the slide for this part
-cpu_choice = None
+import random
+cpu_choice = random.choice(input_choices)
+print(f"Computer picked: {cpu_choice}") 
+
 
 # TODO: Determine if the user wins, the cpu wins, or its a draw
+if user_choice == cpu_choice:
+    print("It's a draw!")
+elif (user_choice == "rock" and cpu_choice == "scissors") or \
+     (user_choice == "paper" and cpu_choice == "rock") or \
+     (user_choice == "scissors" and cpu_choice == "paper"):
+    print("You win!")
+else:
+    print("Computer wins!")
+    
 
 # Challenge: TODO: Robust Input
+robust_input = True
+while robust_input:
+    if user_choice in input_choices:
+        robust_input = False
+    else:
+        user_choice = input("Pick a choice (rock/paper/scissors): ")
+        if user_choice not in input_choices:
+            print("Invalid choice, please pick rock, paper, or scissors.")
+            continue
+        else:
+            robust_input = False
+            
 # Challenge: TODO: Multi-rounds
+multi_rounds = True
+rounds = int(input("How many rounds do you want to play? "))
+current_round = 1
+while multi_rounds:
+    print(f"Round {current_round} of {rounds}")
+    user_choice = input("Pick a choice (rock/paper/scissors): ")
+    if user_choice not in input_choices:
+        print("Invalid choice, please pick rock, paper, or scissors.")
+        continue
+    cpu_choice = random.choice(input_choices)
+    print(f"Computer picked: {cpu_choice}")
+    if user_choice == cpu_choice:
+        print("It's a draw!")
+    elif (user_choice == "rock" and cpu_choice == "scissors") or \
+         (user_choice == "paper" and cpu_choice == "rock") or \
+         (user_choice == "scissors" and cpu_choice == "paper"):
+        print("You win!")
+    else:
+        print("Computer wins!")
+    current_round += 1
+    if current_round > rounds:
+        multi_rounds = False