#include <iostream>

using namespace std;

int n,m;

int main(){
    cin >> n >> m;
    if (n == 0 || m == 0){
        cout << "Zero";
    }
    else if (n < 0 && m < 0){
        int t = abs(n - (m + 1));
        if (t % 2 != 0){
            cout << "Negative";
        }
        else {
            cout << "Positive";
        }
    }
    else if (n > 0 && m > 0){
            cout << "Positive";
    }
    else if (n < 0 && m > 0){
        cout << "Zero";
    }
    return 0;
}
