import java.util.regex.*;

public class Regexp {
  public static void main(String []args) {
    String input = "- How are you today?\n - Fine! Thank you.\n - You 're welcome.";
    
    // βρες όλα τα σημεία στίξης !"#$%&'()*+,-./:;<=>?@[\]^_`{|}~
    Pattern p = Pattern.compile("\\p{Punct}");
    Matcher m = p.matcher(input);
    while(m.find()) {
      System.out.println("Found: "+input.substring(m.start(), m.end()) );
    }
  }
}