C# 1.12 Even Number

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

namespace _1._9._12_Even_Number
{
    class Program
    {
        static void Main(string[] args)
        {
            int evenNum = int.Parse(Console.ReadLine());

            while (true)
            {
                int check = Math.Abs(evenNum) % 2;

                if (check == 1)
                {
                    Console.WriteLine($"Please write an even number.");
                    evenNum = int.Parse(Console.ReadLine());
                }
                else if (check == 0)
                {
                    Console.WriteLine($"The number is: {Math.Abs(evenNum)}");
                    break;
                }

            }
        }
    }
}