import java.util.ArrayList;
import java.util.Scanner;

public class belowAndAboveAverage {
    public static void main(String[] args) {
        Scanner user_input = new Scanner(System.in);

        String line = user_input.nextLine();

        String[] strings = line.split(",");
        ArrayList<Integer> numbers = new ArrayList<>();

        ArrayList<Integer> below = new ArrayList<>();
        ArrayList<Integer> above = new ArrayList<>();
        double average = 0;
        double sum = 0;

        for (String string :
                strings) {
            int number = Integer.parseInt(string);
            numbers.add(number);
        }
        for (int i = 0; i < numbers.size() ; i++) {
            sum = sum + numbers.get(i);
        }


        average = sum/numbers.size();
        for (int i = 0; i <numbers.size() ; i++) {
            if(numbers.get(i) > average){
                above.add(numbers.get(i));
            }else{
                below.add(numbers.get(i));
            }
        }

        System.out.printf("avg: %.2f%n", average);
        System.out.println("below: " + below.toString().replace("[", "").replace(" ", "").replace("]", ""));
        System.out.println("above: " + above.toString().replace("[", "").replace(" ", "").replace("]", ""));
    }

}