import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String[] line = scanner.nextLine().split(",");
        ArrayList<Integer> below = new ArrayList<>();
        ArrayList<Integer> above = new ArrayList<>();
        int[] array = Arrays.asList(line).stream().mapToInt(Integer::parseInt).toArray();
        List<Integer> list = new ArrayList<>(array.length);

        for (int i : array) {
            list.add(Integer.valueOf(i));
        }
        Double average = list.stream().mapToInt(val -> val).average().orElse(0.00);

        for (Integer counter : array
        ) {
            if (counter < average) {
                below.add(counter);
            } else if (counter > average) {
                above.add(counter);
            }
        }
            System.out.printf("avg: %.2f", average);
            System.out.println();
            System.out.println("below: " + below.toString().replace("[", "").replace(" ", "").replace("]", ""));
            System.out.println("above: " + above.toString().replace("[", "").replace(" ", "").replace("]", ""));

    }
}