#include <iostream>
using namespace std;
int main(){
	long long int a , b;
	cin >> a >> b;
	string ans;
	if (a > 0 && b < 0){
		ans = "Zero";
	}
	if (b > 0 && a < 0){
		ans = "Zero";
	}
	if (a > 0 && b > 0){
		ans = "Positive";
	}
	if (a < 0 && b < 0 && (a - b) % 2 == 1){
		ans = "Positive";
	}
	else{
		ans = "Negative";
	}
	cout << ans;
}