ShowsTheSign

using System;
// Write a program that shows the sign (+ or -) of the product of three real numbers without calculating it. Use a sequence of if statements.

class ShowsTheSign
{
    static void Main()
    {
        float firstNum = float.Parse(Console.ReadLine());
        bool firstBoolNum = true;
        if (firstNum < 0)
        {
            firstBoolNum = false;
        }

        float secNum = float.Parse(Console.ReadLine());
        bool secBoolNum = true;
        if (secNum < 0)
        {
            secBoolNum = false;
        }

        float thirdNum = float.Parse(Console.ReadLine());
        bool thirdBoolNum = true;
        if (thirdNum < 0)
        {
            thirdBoolNum = false;
        }

        if ((firstBoolNum ^ secBoolNum ^ thirdBoolNum) == true)
        {
            Console.WriteLine("+");
        }
        else
        {
            Console.WriteLine("-");
        }
    }
}