07. Operations Between Numbers

using System;

namespace Operations_Between_Numbers
{
    class Program
    {
        static void Main(string[] args)
        {

            double n1 = double.Parse(Console.ReadLine());
            double n2 = double.Parse(Console.ReadLine());
            string operation = Console.ReadLine();
            double total = 0;
            string EvenOdd = string.Empty;

            switch (operation)
            {
                case "+":
                    total = n1 + n2;
                    break;
                case "-":
                    total = n1 - n2;
                    break;
                case "*":
                    total = n1 * n2;
                    break;
                case "/":
                    total = n1 / n2;
                    break;
                case "%":
                    total = n1 % n2;
                    break;
            }
            if (operation == "+" || operation == "-" || operation == "*")
            {
                if (total % 2 == 0)
                {
                    EvenOdd = "even";
                }
                else
                {
                    EvenOdd = "odd";
                }
                Console.WriteLine($"{n1} {operation} {n2} = {total} - {EvenOdd}");
            }
            else if (operation == "/")
            {
                if (n1 != 0)
                {
                    Console.WriteLine($"{n1} {operation} {n2} = {total:f2}");
                }
                else
                {
                    Console.WriteLine($"Cannot divide {n1} by zero");
                }
            }
            else if (operation == "%")
                if (n1 != 0)
                {
                    Console.WriteLine($"{n1} {operation} {n2} = {total}");
                }
                else
                {
                    Console.WriteLine($"Cannot divide {n1} by zero");
                }
        }


    }

        }