1 package ioTest;
 2 
 3 import java.io.*;
 4 import java.util.Scanner;
 5 
 6 public class TestMain {
 7 
 8     public static void main(String[] args) {
 9         try {
10             Scanner sc=new Scanner(new File("in.txt"));
11             PrintStream ps=new PrintStream("out.txt");
12             while(sc.hasNext()){
13                 int a=sc.nextInt();
14                 System.out.print(a+" ");
15                 ps.println(a);
16             }
17             
18         } catch (Exception e) {
19             e.printStackTrace();
20         }
21     }
22 
23 }