import java.util.*;
class Main {
    public static int reverse(int n) {
        int rev = 0;
        while (n > 0) {
            rev = rev * 10 + n % 10;
            n /= 10; }
        return rev;}
    public static boolean isPalindrome(int num) {
        int original = num;
        int rev = 0;
        while (num > 0) {
            rev = rev * 10 + num % 10;
            num /= 10; }
        return original == rev;}
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
         if (n<0) {
            System.out.println("Invalid input");
             return();}
        int reverse = reverse(n);
        int sum = n+reverse;
        if (isPalindrome(sum)) {
            System.out.println("Oracle Number");
        } else {
            System.out.println("Not an Oracle Number");}
    }
}