using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        double average = 0;

        int[] marks = new int[5];

        int a = 0;

        Console.WriteLine("Enter 5 elements:");

        while (a < 5)

        {

            if (int.TryParse(Console.ReadLine(), out marks[a]))

                a++;

            else

                Console.WriteLine("You didn't enter a number! Please enter again!");

        }

        average = marks.Average();

        if (average > 0)

            Console.WriteLine("Positive");

        else

            Console.WriteLine("Negative");

    }

}