1

import java.util.Scanner;

public class FoodDelivery {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int people = Integer.parseInt(scanner.nextLine());
        int count = 0;
        double allPrice = 0;
        double basketPrice = 1.50;
        double wreathPrice = 3.80;
        double chocolateBunnyPrice = 7;
        double average = 0;
        for (int i = 1; i <= people; i++)
        {
            String command = scanner.nextLine();

            while (!"Finish".equals(command))
            {
                if (command.equals("basket"))
                {
                    allPrice += basketPrice;
                    count++;

                }
                if (command.equals("wreath"))
                {
                    allPrice += wreathPrice;
                    count++;
                }
                if (command.equals("chocolate bunny"))
                {
                    allPrice += chocolateBunnyPrice;
                    count++;
                }
                command = scanner.nextLine();
            }
            if (count % 2 == 0)
            {
                double percentPrice = allPrice * 0.2;
                allPrice = allPrice - percentPrice;
            }
            average += allPrice;
            System.out.printf("You purchased %d items for %.2f leva.\n",count,average);
        }

        if (people > 1)
        {
            average /= people;
        }
        System.out.printf("Average bill per client is: %.2f leva.",average);

    }
}