Easter Decoration

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int clients = Integer.parseInt(scanner.nextLine()), counter;
        double sum, totalSum = 0;
        String stock;

        for (int i = 0; i < clients; i++) {
            counter = 0;
            sum = 0;
            while (!(stock = scanner.nextLine()).equals("Finish")) {
                switch (stock) {
                    case "basket" -> sum += 1.50;
                    case "wreath" -> sum += 3.80;
                    case "chocolate bunny" -> sum += 7.00;
                }
                counter++;
            }

            if (counter % 2 == 0) {
                sum *= 0.80;
            }

            totalSum += sum;
            System.out.printf("You purchased %d items for %.2f leva.\n", counter, sum);
        }
        System.out.printf("Average bill per client is: %.2f leva.\n", totalSum / clients);
    }
}