21. Write a menu-driven Python program to create a tuple containing 20 integers and display like : First five elements, Last five elements, Middle five elements, Every alternate element, Reverse tuple using slicing.

# Menu-driven program to perform slicing operations on a tuple

numbers = []

print("Enter 20 integers:")

for i in range(20):
    num = int(input("Enter integer " + str(i + 1) + ": "))
    numbers.append(num)

numbers = tuple(numbers)

while True:
    print("\n========== TUPLE SLICING MENU ==========")
    print("1. Display First Five Elements")
    print("2. Display Last Five Elements")
    print("3. Display Middle Five Elements")
    print("4. Display Every Alternate Element")
    print("5. Display Reverse Tuple")
    print("6. Exit")
    print("========================================")

    choice = int(input("Enter your choice: "))

    if choice == 1:
        # First five elements
        print("First Five Elements:", numbers[:5])

    elif choice == 2:
        # Last five elements
        print("Last Five Elements:", numbers[-5:])

    elif choice == 3:
        # Middle five elements
        print("Middle Five Elements:", numbers[7:12])

    elif choice == 4:
        # Every alternate element
        print("Every Alternate Element:", numbers[::2])

    elif choice == 5:
        # Reverse tuple using slicing
        print("Reverse Tuple:", numbers[::-1])

    elif choice == 6:
        print("Program terminated.")
        break

    else:
        print("Invalid choice. Please try again.")