C3123121111113313121111331333131211111333131133132333132322132322331   >>    C312312111111331312111133133313121111133313113313233313232213232233   <<    C3123121111113313121111331333131211111333131133132333132322132322333   >>      C3123121111113313121111331333131211111333131133132333132322132322332   >>