using System;

namespace cSharpIntro
{
    public class program
    {
        public static void Main()
        {
            int num = 0;
            do
            {
                num = int.Parse(Console.ReadLine());
                if (num % 2 != 0)
                {
                    break;
                }
                Console.WriteLine("Please write an odd number.");
                num = int.Parse(Console.ReadLine());

            } while (true);

            Console.WriteLine("The number is: {0}",Math.Abs(num));
        }
    }
}