[—————————————————————-
—————————————————————-
—12-12–12-12-12—-11-11–11-11-11-11-11—-12-12–12-12-12–
—10-10–10-10-10—-9–9—9–9–9–9–9—–10-10–10-10-10–
—10-10–10-10-10—-9–9—9–9–9–9–9—–10-10–10-10-10–
—————————————————————-
—————————————————————-
—12-12–12-12-12—-11-11–11-11-11-11-11—-12-12–12-12-12–
—10-10–10-10-10—-9–9—9–9–9–9–9—–10-10–10-10-10–
—10-10–10-10-10—-9–9—9–9–9–9–9—–10-10–10-10-10–
—————————————————————-
—————————————————————-
—————————————————————-
—9–9-9-9—-8–8-8-8—————————————–
—7–7-7-7—-6–6-6-6—————————————–
—7–7-7-7—-6–6-6-6—————————————–
—————————————————————-]
repeat a few times