J

class Product:
    def __init__(self, name, price, quantity):
        self.name = name
        self.price = price
        self.quantity = quantity
    
    def __str__(self):
        return f'{self.name} - ${self.price} ({self.quantity} available)'

class Shop:
    def __init__(self):
        self.products = []
    
    def add_product(self, product):
        self.products.append(product)
    
    def display_products(self):
        for product in self.products:
            print(product)
    
    def search_product(self, name):
        for product in self.products:
            if product.name == name:
                return product
        return None

class Cart:
    def __init__(self):
        self.items = []
    
    def add_item(self, product, quantity):
        self.items.append((product, quantity))
    
    def remove_item(self, product):
        self.items.remove(product)
    
    def display_cart(self):
        total_price = 0
        for item in self.items:
            product, quantity = item
            price = product.price * quantity
            print(f'{product.name} x{quantity} - ${price}')
            total_price += price
        print(f'Total: ${total_price}')

# Create some products
apple = Product('Apple', 1.0, 10)
banana = Product('Banana', 0.5, 20)
carrot = Product('Carrot', 0.3, 30)

# Create a shop and add the products
shop = Shop()
shop.add_product(apple)
shop.add_product(banana)
shop.add_product(carrot)

# Create a cart and add some items
cart = Cart()
cart.add_item(apple, 3)
cart.add_item(banana, 5)

# Display the products and cart
shop.display_products()
cart.display_cart()