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package com.codegym.task.task19.task1908;
/*
Picking out numbers
*/
import java.io.*;
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String a = reader.readLine();
String b = reader.readLine();
reader.close();
BufferedReader fileReader = new BufferedReader(new FileReader(a));
// FileWriter fileWriter = new FileWriter(b);
BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(b));
while(fileReader.ready()){
String str = fileReader.readLine();
String good = str.replaceAll("\\D+", " ");
bufferedWriter.write(good);
}
fileReader.close();
bufferedWriter.close();
}
}