// Here's an open problem:
//    Start with any number
//      If it is even, divide by 2
//      If it is odd, multiply by 3 and add 1
//    Keep doing this

// Open question: Do you always end up at 1?

import java.util.*;

public class OpenProblem {
	public static void main(String[] args) {
		Scanner console = new Scanner(System.in);
		System.out.print("Enter a number: ");
		int x = console.nextInt();
		while (x != 1) {
			if ((x%2) == 0) {
				x = x/2;
			} else {
				x = 3*x + 1;
			}
			System.out.println(x);

		}
	}
}