import java.util.*;
public class Project1
{
	public static void main(String[] args)
	{
		Scanner stdin = new Scanner (System.in);
		int input;
		int i = 0;
		int output = 0;

		System.out.println("Enter an integer: ");
		input = stdin.nextInt();

		while(output != 1)
		{
			while(input % 2 != 0)
			{
				output = 3*input + 1;
				System.out.println(output);
				i++;
			}
			while(input % 2 == 0)
			{
				output = input / 2;
				System.out.println(output);
				i++;
			}
		}
		System.out.println("It took "+i+ "iterations.");
	}
}