//a C program to check a given number is positive or negative or zero using function.
#include<stdio.h>
void num_look(int num)
{
    if(num<0)
    {
        printf("Negative");
    }
    else if(num>0)
    {
        printf("positive");
    }
    else
    {
    printf("zero");
    }
}
int main()
{
    int num;
    scanf("%d",&num);
    num_look(num);
    return 0;
}