#include<algorithm>
#include<cmath>
(资料图片仅供参考)
#include<cstdio>
#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;
}
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