using System;

public class Collatz1 {

   public static void printCollatz(int num1)

    {

        while (num1 != 1)

        {

            Console.Write (num1 + " ");

            if ((num1 & 1) == 1)

                num1 = 3 * num1 + 1;

            else

                num1 = num1 / 2;

        }

        Console.Write (num1);

    }

 public static void Main()

    { 

​

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

             int num1 = Convert.ToInt32(Console.ReadLine());

        Console.Write("\nThe Collatz Sequence for {0} is:\n", num1);

                printCollatz(num1);

    }

}