#include <bits/stdc++.h>

using namespace std;

int main()
{
    int n;

    cin >> n;

    if (n == 0)
    {
        cout << "zero";
    }
    else if (n < 0)
    {
        cout << "negative";
    }
    else if (n > 0)
    {
        cout << "positive";
    }

    return 0;
}