import log
import sys

main() {
	collatz(12)
}

collatz(x Int) {
	loop {
		if x & 1 == 0 {
			x /= 2
		} else {
			x = 3 * x + 1
		}

		log.number(x)

		if x == 1 {
			return
		}

		sys.write(1, " ", 1)
	}
}