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class Item:
    def _init_(self, name, price, quantity):
        self.name = name
        self.price = price
        self.quantity = quantity

# Create an initial inventory with at least 5 items
inventory = [
    Item("Item1", 10.99, 50),
    Item("Item2", 5.99, 30),
    Item("Item3", 2.49, 100),
    Item("Item4", 7.99, 20),
    Item("Item5", 15.49, 10)
]

def display_inventory(inventory):
    print("Inventory:")
    for item in inventory:
        print(f"Name: {item.name}, Price: ${item.price:.2f}, Quantity: {item.quantity}")

def add_item(inventory):
    name = input("Enter the name of the new item: ")
    price = float(input("Enter the price of the new item: "))
    quantity = int(input("Enter the quantity of the new item: "))
    new_item = Item(name, price, quantity)
    inventory.append(new_item)
    print(f"{name} has been added to the inventory.")

def update_quantity(inventory):
    name = input("Enter the name of the item to update: ")
    for item in inventory:
        if item.name == name:
            new_quantity = int(input("Enter the new quantity: "))
            item.quantity = new_quantity
            print(f"Quantity for {name} has been updated to {new_quantity}.")
            break
    else:
        print(f"{name} is not in the inventory.")

def remove_item(inventory):
    name = input("Enter the name of the item to remove: ")
    for item in inventory:
        if item.name == name:
            inventory.remove(item)
            print(f"{name} has been removed from the inventory.")
            break
    else:
        print(f"{name} is not in the inventory.")

while True:
    print("\nOptions:")
    print("1. Display Inventory")
    print("2. Add Item")
    print("3. Update Quantity")
    print("4. Remove Item")
    print("5. Exit")
    
    choice = input("Enter your choice: ")

    if choice == '1':
        display_inventory(inventory)
    elif choice == '2':
        add_item(inventory)
    elif choice == '3':
        update_quantity(inventory)
    elif choice == '4':
        remove_item(inventory)
    elif choice == '5':
        break
    else:
        print("Invalid choice. Please try again.")

print("Thank you for using the inventory management system!")