#include <iostream>
#include<cstdio>
#include<cmath>
#include<algorithm>
#include<cstring>
#include<iomanip>
#include<string.h>
#include<bits/stdc++.h>
using namespace std;
int a[10005];


int main()
{
   int a,b;
   cin>>a>>b;
   if(a>0&&b>0)
    cout<<"Positive"<<endl;
   else if(a<0&&b<0)
    cout<<"Negative"<<endl;
   else if(a<0&&b>0)
    cout<<"zero"<<endl;
    return 0;
}







