using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter the number of the day in the month");

        int day = int.Parse(Console.ReadLine());

        if (day==15)

        Console.WriteLine("you are in the middle of the month");

        else

        if (day>=16 && day<=31)

        Console.WriteLine("you are after the middle of the month");

        else

        if (day>=1 && day<=14)

        Console.WriteLine("you are before the middle of the month");    

        else 

        Console.WriteLine("Error"); 

    }

}