import java.util.*;
public class Main{
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        int num=sc.nextInt();
        if(num<0){
            System.out.print("Invalid input");
            return;
            
        }
        test(num);
    }
    static void test(int n){
        int temp=n;
        int sum=0;
        int rem=0;
        while (temp>0){
            rem=temp%10;
            sum=rem*10+rem;
            temp=temp/10;
        }
        int tot=n+sum;
        int temp=tot;
        int sum1=0;
       
        while (temp>0){
            rem=temp%10;
            sum1=sum1*10+rem;
            temp=temp/10;
        }
        if(sum1==tot){
            System.out.print("Oracle Number");
        }
        else{
            System.out.print("Not an Oracle Number");
        }
    }
}