import java.util.Scanner;
import java.util.regex.Pattern;

public class Main {
    public static void main(String[] args) {
        Pattern pattern = Pattern.compile(args[0]);
        Scanner myObj = new Scanner(System.in);
        myObj.findAll(pattern).forEach(matchResult -> {
            for (int i=0; i< matchResult.groupCount() ; i++) {
                System.out.println(matchResult.group(i+1));
            }
        });
    }
}