if (byteStack.empty())package com.javarush.task.task18.task1809;
import java.io.*;
import java.util.*;
/*
Реверс файла
/home/masha/Desktop/txt.txt
*/
public class Solution {
public static void main(String[] args) throws IOException {
try (FileInputStream fileInputStream = new FileInputStream(new BufferedReader(new InputStreamReader(System.in)).readLine());
FileOutputStream fileOutputStream = new FileOutputStream(new BufferedReader(new InputStreamReader(System.in)).readLine())) {
Stack<Byte> byteStack = new Stack<>();
while (fileInputStream.available() > 0) {
// read from buffer
byteStack.push((byte) fileInputStream.read());
}
for (int i = 0; i < byteStack.size(); i++) {
fileOutputStream.write(byteStack.pop());
}
}
}
}