// Main class
public class PizzaMain {
    public static void main(String[] args) {
        // Create a plain pizza
        Pizza plainPizza = new PlainPizza();
        System.out.println("Description: " + plainPizza.getDescription());
        System.out.println("Cost: " + plainPizza.cost());

        // Add pepperoni to the plain pizza using decorator
        Pizza withPepperoni = new PepperoniDecorator(plainPizza);
        System.out.println("Description: " + withPepperoni.getDescription());
        System.out.println("Cost: " + withPepperoni.cost());
    }
}