using System;

public class Program

{

    public static void Main()

    {

        int odd = 1;

        int number;

        Console.WriteLine("Enter an integer");

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

        while(odd!=number)

        {

            if (number <0)

            {

                Console.WriteLine(odd);

                odd = odd - 2;

            }

            else

            {

                Console.WriteLine(odd);

                odd = odd + 2;

            }

        }

    }

}