#include<iostream>
#include<cstdio>
#include<cctype>
#include<string.h>
#include<math.h>
#include<cmath>
#include<algorithm>
#include<iomanip>
using namespace std;
int main()
{
	int n;
	cin>>n;
	if(n>0)
	{
		cout<<"positive";	
	} 
	else if(n==0)
	{
		cout<<"zero";
	}
	else if(n<0)
	{
		cout<<"negative";
	}
	return 0;
}