Bills

import java.util.Scanner;

public class Bills {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int months = Integer.parseInt(scanner.nextLine());
        double sumEl = 0;
        double sumW = months * 20;
        double sumI = months * 15;
        double sumO = 0;
        double av = 0;
        for (int i = 1; i <= months; i++) {
            double el = Double.parseDouble(scanner.nextLine());
            sumEl = sumEl + el;
            sumO = (sumEl + sumW + sumI) * 1.2;
            av = (sumEl + sumW + sumI + sumO) / months;
        }
        System.out.print("Electricity: ");
        System.out.printf("%.2f", sumEl);
        System.out.println(" lv");
        System.out.print("Water: ");
        System.out.printf("%.2f", sumW);
        System.out.println(" lv");
        System.out.print("Internet: ");
        System.out.printf("%.2f", sumI);
        System.out.println(" lv");
        System.out.print("Other: ");
        System.out.printf("%.2f", sumO);
        System.out.println(" lv");
        System.out.print("Average: ");
        System.out.printf("%.2f", av);
        System.out.println(" lv");
    }
}