using System;

public class Program

{

    public static void Main()

    {

        for(int i=10;i>0;i--){

            var c =i<<3;

            Console.WriteLine(c);

        }

        for(int i=10;i>0;i--){

            var c =i>>1;

            Console.WriteLine(i+" - "+c);

        }

    }

}