import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.StringTokenizer;

public class Main {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		PrintWriter out = new PrintWriter(System.out);
		StringTokenizer toks = new StringTokenizer(in.readLine());
		long a = Integer.parseInt(toks.nextToken());
		long b = Integer.parseInt(toks.nextToken());
		if (a <= 0 && b >= 0)
			out.println("Zero");
		else if (a > 0 && b > 0)
			out.println("Positive");
		else if (a < 0 && b < 0)
			if ((Math.abs(b) - Math.abs(a)) % 2 == 0)
				out.println("Negative");
			else
				out.println("Positive");
		out.close();
	}
}