import java.io.*;

public class Solution {
    public static void main(String[] args) throws IOException {

        boolean flag = true;

        try (BufferedReader reader = new BufferedReader(new InputStreamReader(System.in))) {

            String sourceFileName = reader.readLine();
            String destinationFileName = reader.readLine();

            while (flag) {
                try (FileOutputStream fileOutputStream = new FileOutputStream(destinationFileName);
                     FileInputStream fileInputStream = new FileInputStream(sourceFileName)) {

                    int value;
                    char content;

                    while ((value = fileInputStream.read()) != -1) {

                        content = (char) value;
                        fileOutputStream.write(content);
                    }

                    flag = false;
                }
                catch (FileNotFoundException e) {
                    System.out.println("Файл не существует.");
                    sourceFileName = reader.readLine();
                }
            }
        }
        catch (IOException e) {
            e.printStackTrace();
        }

    }
}