Problem 4

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace task_4
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Please write a: ");
            int a = int.Parse(Console.ReadLine());
            Console.WriteLine("Please write b: ");
            int b = int.Parse(Console.ReadLine());
            Console.WriteLine("Please write c: ");
            int c = int.Parse(Console.ReadLine());
            int result = a * b * c;
            if (result == 0) Console.WriteLine("0");
            if (result > 0) Console.WriteLine("+");
            if (result < 0) Console.WriteLine("-");

        }
    }
}