#5MultiplicationSign

using System;

class MultiplicationSign
{
    static void Main()
    {
        Console.WriteLine("Enter first number.");
        double a = double.Parse(Console.ReadLine());
        Console.WriteLine("Enter second number.");
        double b = double.Parse(Console.ReadLine());
        Console.WriteLine("Enter third number.");
        double c = double.Parse(Console.ReadLine());
        double result = a * b * c;
        if (result < 0)
        {
            Console.WriteLine("The multiplication sign of the three numbers is: -");
        }
        else if (result == 0)
        {
            Console.WriteLine("The multiplication result is: 0");
        }
        else
        {
            Console.WriteLine("The multiplication sign of the three numbers is: +");
        }
    }
}