using System;

public class Program

{

    public static void Main()

    {

        int n = int.Parse(Console.ReadLine());

        int sumPos = 0;

        int sumNeg = 0;

        for (int i = 1; i <= n; i++)

        {

            int number = int.Parse(Console.ReadLine());

            if (number >= 0)

            {

                sumPos += number;

            }

            else sumNeg += number;

        }

        Console.WriteLine("sumPositive = " + sumPos);

        Console.WriteLine("sumNegative = " + sumNeg);

    }

}