C3123121111113313121111331333133313233313331312111133132233131133221   >>    C312312111111331312111133133313331323331333131211113313223313113322   <<    C3123121111113313121111331333133313233313331312111133132233131133223   >>      C3123121111113313121111331333133313233313331312111133132233131133222   >>