operations between numbers

using System;

namespace homeworkconditional
{
    class Program
    {
        static void Main(string[] args)
        {
            var  n1 = double.Parse(Console.ReadLine());
            var  n2 = double.Parse(Console.ReadLine());
            string operatorSum = Console.ReadLine();

            var result = 0.0;
            string evenOdd = "";



            if (n2 == 0)
            {
                Console.WriteLine($"Cannot divide {n1} by zero");
            }
            else if (n2 > 0)
            {
                if (operatorSum == "+")
                {
                    result = n1 + n2;

                    if (result % 2 == 0)
                    {
                        evenOdd = "even";
                    }
                    else
                    {
                        evenOdd = "odd";
                    }

                    Console.WriteLine($"{n1} {operatorSum} {n2} = {result} - {evenOdd}");
                }
                else if (operatorSum == "-")
                {
                    result = n1 - n2;

                    if (result % 2 == 0)
                    {
                        evenOdd = "even";
                    }
                    else
                    {
                        evenOdd = "odd";
                    }

                    Console.WriteLine($"{n1} {operatorSum} {n2} = {result} - {evenOdd}");
                }
                else if (operatorSum == "*")
                {
                    result = n1 * n2;

                    if (result % 2 == 0)
                    {
                        evenOdd = "even";
                    }
                    else
                    {
                        evenOdd = "odd";
                    }

                    Console.WriteLine($"{n1} {operatorSum} {n2} = {result} - {evenOdd}");
                }
                else if (operatorSum == "/")
                {
                    result = n1 / n2;
                    Console.WriteLine($"{n1} / {n2} = {result:f2}");
                }
                else
                {
                    result = n1 % n2;
                    Console.WriteLine($"{n1} % {n2} = {result}");
                }

            }




        }
    }
}