백준 #24883번 자동완성

import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		
		String a = sc.next();
		if(a.equals("N") || a.equals("n")) {
			System.out.println("Naver D2");
		}else {
			System.out.println("Naver Whale");
		}
		sc.close();
	}
}