import java.io.*;

public class TrashMP3 {
    static int INTERFERENCE = 200500;
    static int RANDOMBYTE = 5;

    public static void main(String[] arguments) {
        try {
            File song = new File(arguments[0]);
            FileInputStream file = new FileInputStream(song);
            File trashedSong = new File("trashed.mp3");
            FileOutputStream trash = new FileOutputStream(trashedSong);
            boolean eof = false;
            int count = 0;
            System.out.println("Creating file ...");
            while (!eof) {
                int input = file.read();
                if (input == -1)
                    eof = true;
                else {
                    count++;
                    if (count % INTERFERENCE == 0) {
                        int newInput = input + RANDOMBYTE;
                        if (newInput > 255)
                            newInput = newInput - 255;
                        trash.write(newInput);
                    } else
                        trash.write(input);
                }
            }
            file.close();
            trash.close();
            System.out.println("Done");
        } catch (Exception e) {
            System.out.println("Error -- " + e.toString());
        }
    }
}