ConditionalStatements-T02.ShowSignOfProduct

using System;

class ShowSignOfProductVersion2
{
    static void Main()
    {

        double n;
        int countPositive = 0;
        int countNegative = 0;
        for (int i = 1; i <= 3; i++)
        {
            do
            {
                Console.Write("n = ");
            }
            while (!double.TryParse(Console.ReadLine(), out n));

            if (n > 0)
            {
                countPositive++;
            }
            else
            {
                countNegative++;
            }
        }
        if ((countNegative != 0))
        {
            if (countNegative % 2 == 0)
            {
                Console.WriteLine("+");
            }
            else
            {
                Console.WriteLine("-");
            }
        }
        else
        {
            Console.WriteLine("+");
        }
    }
}