using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter Number");

        string strNum=Console.ReadLine();

        int num;

        if (int.TryParse(strNum, out num))

            num=int.Parse(strNum);

        if (num>0)

        {

            Console.WriteLine("Positive");

        }

        else if (num<0)

        {

            Console.WriteLine("Negative");

        }

        else 

            Console.WriteLine("Zero");

    }

}