a=int(input()) if a>0: print("positive") elif a==0: print("zero") else: print("negative")

#include<bits/stdc++.h>
using namespace std;
int main(){
	int a;
	cin>>a;
	if(a>0) cout<<"positive";
	if(a==0) cout<<"zero";
	if(a<0) cout<<"negative";
	return 0;
}