using System;

public class Program

{

    static int x = 1;

    static int y = 5;

    public static void Main()

    {

        while(x <= y){

        x++;

            Console.WriteLine(x);

        } 

        while(x >= y)

        {

        y = x + 5;  

            Console.WriteLine(y + "");

        }

    }

}