#!/usr/bin/python3
# -*- coding: utf-8 -*-
# m3e8_00.py

nNum = int(input("Número?: "))
while True:
	print("%d" % nNum)
	if nNum == 1:
		break
	elif nNum % 2:
		nNum = 3*nNum + 1
	else:
		nNum /= 2 # El mateix que nNum = nNum / 2