reverseStringer

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String r = reverse(sc.nextLine());
        System.out.println(r);

    }

    public static String reverse(String s){
        char[] letters = new char[s.length()];
        int letterIndex = 0;

        for (int i = s.length() - 1; i >= 0; i--) {

            letters[letterIndex] = s.charAt(i);
            letterIndex++;

        }

        String reverse = "";
        for (int i = 0; i < s.length(); i++) {
            reverse = reverse + letters[i];
        }

        return reverse;
    }

}