#include<algorithm>

#include<cmath>

#include<cstdio>

(相关资料图)

#include<iostream>

using namespace std;

int main(){

long N;

cin>>N;

if(N>0){

cout<<"positive";

}

else if(N<0){

cout<<"negative";

}

else{

cout<<"zero";

}

return 0;

}