package com.javarush.task.task19.task1908;

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

/*
Выделяем числа
*/

public class Solution {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String file1name = reader.readLine();
        String file2name = reader.readLine();
        reader.close();

        try (BufferedReader reader1 = new BufferedReader(new FileReader(file1name))){
            try (BufferedWriter writer = new BufferedWriter(new FileWriter(file2name))){
                while (reader1.ready()) {
                    writer.write(reader1.readLine().replaceAll
                            ("\\D", " ").replaceAll("\\s+", " "));

                }
            }

        }

    }
}