#include <iostream>
#include <algorithm>
#include <map>
#include <string>
using namespace std;
#define ll  long long
int main ()
{
   	ll a,b;
   	cin>>a>>b;
   	if (a>0&&b>0)
   		cout<<"Positive"<<endl;
   	if (a==0||b==0)
   		cout<<"Zero"<<endl;
   	if (a<0&&b>0)
   		cout<<"Zero"<<endl;
   	if (a<0&&b<0)
   	{
   		
		ll t=b-a;
		if (t%2==0)
			cout<<"Negative";
		else
			cout<<"Positive";
	}
    return 0;
}