#include <bits/stdc++.h>
using namespace std;
long long a, b;
int main () {
	cin >> a >> b;
	
	if(a < 0 && 0 < b) {
		cout << "Zero";
	}
	else if(0 < a && 0 < b) {
		cout << "Positive";
	}
	else if(a < 0 && b < 0 &&(b - a) % 2 == 0) {
		cout << "Negative";
	}
	else if(a < 0 && b < 0 &&(b - a) % 2 != 0) {
		cout << "Positive";
	}
}