#include<bits/stdc++.h>

using namespace std;

int main()

{

int n;

cin>>n;

if(n==0){

	cout<<"zero"<<endl;

}

else if(n<0){

	cout<<"negative"<<endl;

}

else{

	cout<<"positive"<<endl;

}

return 0;	

}

#include using namespace std; int main(){ int n; cin>>n; if(n>0){ cout<<"positive"; } else if(n==0){ cout<<"zero"; } else{ cout<<"negative"; } return 0; }