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


public class Main {
    public static void main(String args[]) {
        Scanner scanner = new Scanner(System.in);
        String line = scanner.nextLine();
        String [] arrayNumbers = line.split(", ");
        Integer [] numbers = new Integer[arrayNumbers.length];
        for (int i = 0; i <arrayNumbers.length; i++) {
            numbers[i] = Integer.parseInt(arrayNumbers[i]);

        }
        Arrays.sort(numbers, Collections.reverseOrder());
        String []result = new String[numbers.length];
        for (int k = 0; k <numbers.length ; k++) {
            result[k]= Integer.toString(numbers[k]);
        }
        System.out.println(String.join(", ", result));
        }

        }