#include<iostream> using namespace std; int main(){ int n; cin>>n; if(n>9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999){ cout<<"positive"; }else if(n<0){ cout<<"negative"; }else if(n==0){ cout<<"zero"; }else{ cout<<"infinity"; } return 0; }