#include <iostream>

using namespace std;

long long a,b,type;

int main()
{
    scanf("%I64d%I64d",&a,&b);
    if(a<=0&&b>=0){
        printf("Zero\n");
        return 0;
    }
    type=(b-a+1)%2;
    if(type&&b<0)
        printf("Negative\n");
    else
        printf("Positive\n");
    return 0;
}