#include<iostream>
using namespace std;
int a[109];
int main()
{
	int b,c,d=0,q=1;
	cin>>b>>c;
	if(b>c)
	{
	d=b;
    b=c;
    c=d;
    }
    for(int i=b;i<=c;i++)
    {
    	a[i]=i;
    	q=q*a[i];
    }
    if(q>0)
    cout<<"Positive"<<endl;
    else if(q==0)
    cout<<"Zero"<<endl;
    else if(q<0)
    cout<<"Negative"<<endl; 
    return 0;
}