Logistics

import java.util.Scanner;

public class Logistics {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int packagesCount = Integer.parseInt(scanner.nextLine());

        double allWeight = 0;
        int busCount = 0;
        int truckCount = 0;
        int trainCount = 0;
        double price = 0;
        for (int i = 1; i <= packagesCount ; i++) {
            int weight = Integer.parseInt(scanner.nextLine());
            if (weight <= 3) {
                busCount += weight;
                price += weight * 200;
                allWeight += weight;
            }else if (weight <= 11) {
                truckCount += weight;
                price += weight * 175;
                allWeight += weight;
            }else {
                trainCount+= weight;
                price += weight * 120;
                allWeight += weight;
            }
        }
        double averagePrice = price / allWeight;
        double busPercent = busCount / allWeight * 100;
        double truckPercent = truckCount / allWeight * 100;
        double trainPercent = trainCount / allWeight * 100;
        System.out.printf("%.2f%n",averagePrice);
        System.out.printf("%.2f%%%n",busPercent);
        System.out.printf("%.2f%%%n",truckPercent);
        System.out.printf("%.2f%%",trainPercent);
    }
}