FileReader fread = new FileReader(path);
        Scanner fscan = new Scanner(fread);
        isCorrect = true;
        deleteIndex = 0;
        while(fscan.hasNextLine() && isCorrect) {
            try {
                deleteIndex = Integer.parseInt(fscan.nextLine());
            } catch (Exception e) {
                isCorrect = false;
            }
            if ((((deleteIndex < 1) || (deleteIndex > maxIndex+1))) && isCorrect)
                isCorrect = false;
        }
        fread.close();