/* 
 * Copyright (c) 1999-2002, Xiaoping Jia.  
 * All Rights Reserved. 
 */

import  java.io.*;
import  java.util.*;

/**
 *  This program breaks the input text into words. 
 */
public class Words {

  public static void main(String[] args) {
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    try {
      String line, word;
      String delim = " \t\n.,:;?!-/()[]\"\'";  // spaces and punctuations
      while((line =  in.readLine()) != null) {
	StringTokenizer st = new StringTokenizer(line, delim);
	while(st.hasMoreTokens()) {
	  System.out.println(st.nextToken());
	}
      }
    }  catch(IOException e) {}
  }

}