import java.util.*;
public class Main{
 public static void main(String[]args){
     Scanner diva = new Scanner(System.in);
     int N = diva.nextInt();
     if(n<0){
         System.out.print("Invalid input");
     }
     int rev = 0;
     int temp = N;
     while(N!=0){
         int rem = N%10;
         rev = (rev*10) + rem;
         N = N/10;
     }
     int sum = temp + rev;
     int temp_1 = sum;
     while(sum!=0){
         int rem_1 = sum%10;
         rev_1 = (rev_1*10) + rem_1;
         sum = sum/10;
     }
     if(rev_1 == temp_1){
         System.out.print("Oracle Number");
     }
     else{
         System.out.print("Not an Oracle Number");
     }
 }   
}