using System;

public class Program

{

    public static void Main()

    {

        int Num1;

        Console.WriteLine("enter a whole number,I will declare it as odd or even");

        Num1 =Convert.ToInt32(Console.ReadLine());

        int remainder = Num1 % 2;

        if (remainder > 0)

        {

            Console.WriteLine("the number {0} is an odd number",Num1);

        }

        else

        {

            Console.WriteLine("the number {0} is an even number",Num1);

        }

    }   

}

​