#include <iostream>

using namespace std;

int main() {
    int a, b;
    cin >> a >> b;
    if (a <= 0 && b >= 0)
        cout << "Zero" << endl;
    else if (a < 0 && b < 0){
        if (b - a + 1 % 2 == 0)
            cout << "Positive" << endl;
        else
            cout << "Negative" << endl;
    }
    else
        cout << "Positive" << endl;
}
