#include<cstdio>
#include<algorithm>
using namespace std;
int main(void)
{
	long long int a,b;
	while(scanf("%lld%lld",&a,&b)!=EOF)
	{
		if(a>0&&b>0)
		printf("Positive\n");
		else if(a<0&&b>0)
		printf("Zero\n");
		else if(a==0||b==0)
		printf("Zero\n");
		else  if(a<0&&b<0)
		{
			if((b-a+1)%2==0)
			printf("Positive\n");
			else
			printf("Negative\n");
		}
		
	}
	return 0;
}