#include <bits/stdc++.h>
using namespace std;
int n;
int main()
{
    scanf("%d", &n);
    printf((n ? (n > 0 ? "positive" : "negative") : "zero"));
    return 0;
}

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N = int(input())
if N>0:
    print("positive")
elif N<0:
    print("negative")
else:
    print("zero")

#include <bits/stdc++.h> using namespace std; int n; int main() { scanf("%d", &n); printf((n ? (n > 0 ? "positive" : "negative") : "zero")); return 0; }