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package pl.codegym.task.task19.task1923;
import java.io.*;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class Solution {
public static void main(String[] args) throws IOException {
String file1 = args[0];
String file2 = args[1];
FileReader fileReader = new FileReader(file1);
BufferedReader bufferedReader = new BufferedReader(fileReader);
FileWriter fileWriter = new FileWriter(file2);
BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
List<String> listaLinii = new ArrayList<>();
List<String> listaSlow = new ArrayList<>();
String linia;
while ((linia = bufferedReader.readLine())!=null){
listaLinii.add(linia);
}
bufferedReader.close();
fileReader.close();
for (int i = 0; i < listaLinii.size(); i++) {
String[] lista = listaLinii.get(i).split(" ");
for (int j = 0; j < lista.length; j++) {
listaSlow.add(lista[j]);
}
}
for (int i = 0; i < listaSlow.size(); i++) {
boolean hasNumber = false;
for (int j = 0; j < listaSlow.get(i).length(); j++) {
if (Character.isDigit(listaSlow.get(i).charAt(j))){
hasNumber = true;
}
}
if (hasNumber)
bufferedWriter.write(listaSlow.get(i)+" ");
}
fileWriter.close();
bufferedWriter.close();
}
}