#! /usr/bin/python

start = int(raw_input("a = "))
a = start
if a >= 1:
	count = 0

	while ((a != 1) and (count < 100)):
		if (a % 2):
			a = 3*a+1
		else:
			a = a/2
		print a,
		count += 1

	print
	print "steps: "+str(count)