using System;

public class Program

{

    public static void Main()

    {

            int customers;

            float totalBill = 0;

            customers = Int32.Parse(Console.ReadLine());

            for (int i=0; i<customers; i++){

                float bill = 0;

                int products = 0;

                string inputText;

                do

                {

                    inputText = Console.ReadLine();

                    switch (inputText)

                    {

                        case "basket":

                            bill += 1.5F;

                            products++; 

                            break;

                        case "wreath":

                            bill += 3.8F;

                            products++; 

                            break;

                        case "chocolate bunny":

                            bill += 7F;

                            products++; 

                            break;

                        default:

                            break;

                    }

                } while (inputText != "Finish");        

                if (products%2 == 0) bill = bill * 0.8F;

                totalBill = totalBill + bill;

                Console.WriteLine("You purchased " + products + " items for " + bill.ToString("0.00") + " leva.");

            }       

            Console.WriteLine("Average bill per client is: " + (totalBill / customers).ToString("0.00") + " leva");

    }

}