#include <iostream>
#include <cmath>
#include <string>
#include <algorithm>
#include <cstdio>
using namespace std;
int main()
{
    int a,b,c,d=0;
    int x[20]; int s=1;
     cin>>a>>b; if(a<=0&&b>=0)
      cout<<"Zero"<<endl;
      if(a>0&&b>0)
        cout<<"Positive"<<endl;
      if(a<0&&b<0)
        { for(int i=a;i<=b;i++)
         {
             if(i<=b) d++;
             }
      if(d%2==0) cout<<"Positive"<<endl;
      else cout<<"Negative"<<endl;
      }
       return 0;
}

