using System;

public class Program

{

    public static void Main()

    {

        int count = 0,y;

        Console.WriteLine("Enter the limit: ");

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

        for (int x = 2; x < y; x++)

        {

            if (Isprimarry(x) == true)

            {

                Console.WriteLine("the number {0} is primarry\n",x);

                count++;

            }

        }

        Console.WriteLine("in total there is " + count + " primarry numbers.");

    }

    public static bool Isprimarry(int x)

    {

        bool may = true;

        for (int i = 2; i < x; i++)

        {

            if (x % i == 0 && x / 2 != 0)

            {

                may = false;

                break;

            }

        }

        return may;

    }

}