// Program 16: Drabon Number

import java.util.*;
class Drabon {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        if (n < 1) {
            System.out.println("Invalid number");
            return;
        }
        int ones = 0;
        int temp = n;
        while (temp > 0) {
            if (temp % 2 == 1) {
                ones++;
            }
            temp /= 2;
        }
        System.out.println(ones % 2 == 0 ? "Drabon" : "Not Drabon");
    }
}