Операции между числа

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

namespace _8.Операции_между_числа
{
    class Program
    {
        static void Main(string[] args)
        {
            double n1 = double.Parse(Console.ReadLine());
            double n2 = double.Parse(Console.ReadLine());
            char symbol = char.Parse(Console.ReadLine());



            if (n2 != 0)
            {
                double rezult = 0.0;
                string evenOrOdd = string.Empty;

                if (symbol == '+')
                {
                    rezult = n1 + n2;
                }

                else if (symbol == '-')
                {
                    rezult = n1 - n2;
                }

                else if (symbol == '*')
                {
                    rezult = n1 * n2;
                }

                else if (symbol == '/')
                {
                    rezult = n1 / n2;
                }

                else if (symbol == '%')
                {
                    rezult = n1 % n2;
                }

                if (rezult % 2 == 0)
                {
                    evenOrOdd = "even";
                }
                else
                {
                    evenOrOdd = "odd";
                }

                double moduleDivide = n1 % n2;

                if (symbol == '+' || symbol == '-' || symbol == '*')
                {
                    Console.WriteLine($"{n1} {symbol} {n2} = {rezult} - {evenOrOdd}");
                }
                else if (symbol == '/')
                {
                    Console.WriteLine($"{n1} / {n2} = {rezult:F2}");
                }
                else if (symbol == '%')
                {
                    Console.WriteLine($"{n1} % {n2} = {moduleDivide}");
                }
            }



            else
            {
                Console.WriteLine($"Cannot divide {n1} by zero");
            }



        }
    }
}