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

public class cs491f14_01_reverse_words  {

    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNextLine()) {
            String phrase = sc.nextLine();
            reversewords(phrase);
        }

    }

    public static void reversewords(String phrase) {
            ArrayList<String> list = new ArrayList<String>();

            // Remove the .
            String lastchar = String.valueOf(phrase.charAt(phrase.length()-1));


            phrase = phrase.replace(lastchar , "");

            // Split into Words
            String split[] = phrase.split(" ");

            // 1) Push Words Onto List.
            for (String word : split )  {
                list.add(word);
            }

            // Reverse words in list.
            Collections.reverse(list);

            // Go through the list and adjust commas if necessary..
            for (int i = 0; i < list.size() ; i++ ) {
                if ( list.get(i).contains(",") ) {
                    // Add ',' to previous word
                    list.set( i-1 , list.get(i-1 ) + ",");

                    // remove ',' from current word
                    list.set( i , list.get(i).replace("," , ""));

                }

            }

            // You Really want to use String builder?  Ok..
            StringBuilder sB = new StringBuilder("");
            for( String v : list ) {
                sB.append(v + " ");
            }

            // Replace the last space the last space with a period.
            sB.replace(sB.length()-1, sB.length()-1, lastchar);
            System.out.println(sB.toString().trim());
    }

}