using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter a number : ");

        int number = 

        int.Parse(Console.ReadLine());

        while(number>1) {

            Console.Write(number +"  ");

            if(number%2==0) {

                number=number/2;

            }else {

                number=3*number+1;

            }

    }

    }

}